21990959916

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1152

約数の個数: 192

約数和(自身を含む): 57452322816

約数和(自身を除く): 35461362900

約数列:

[1, 2, 3, 4, 6, 12, 23, 37, 41, 46, 53, 69, 74, 82, 92, 106, 111, 123, 138, 148, 159, 164, 212, 222, 246, 276, 318, 444, 492, 636, 851, 943, 991, 1219, 1517, 1702, 1886, 1961, 1982, 2173, 2438, 2553, 2829, 2973, 3034, 3404, 3657, 3772, 3922, 3964, 4346, 4551, 4876, 5106, 5658, 5883, 5946, 6068, 6519, 7314, 7844, 8692, 9102, 10212, 11316, 11766, 11892, 13038, 14628, 18204, 22793, 23532, 26076, 34891, 36667, 40631, 45103, 45586, 49979, 52523, 68379, 69782, 73334, 80401, 81262, 90206, 91172, 99958, 104673, 105046, 110001, 121893, 135309, 136758, 139564, 146668, 149937, 157569, 160802, 162524, 180412, 199916, 209346, 210092, 220002, 241203, 243786, 270618, 273516, 299874, 315138, 321604, 418692, 440004, 482406, 487572, 541236, 599748, 630276, 843341, 934513, 964812, 1208029, 1503347, 1686682, 1849223, 1869026, 1943351, 2153443, 2416058, 2530023, 2803539, 3006694, 3373364, 3624087, 3698446, 3738052, 3886702, 4306886, 4510041, 4832116, 5060046, 5547669, 5607078, 5830053, 6013388, 6460329, 7248174, 7396892, 7773404, 8613772, 9020082, 10120092, 11095338, 11214156, 11660106, 12920658, 14496348, 18040164, 22190676, 23320212, 25841316, 34576981, 44697073, 49529189, 69153962, 79677391, 89394146, 99058378, 103730943, 134091219, 138307924, 148587567, 159354782, 178788292, 198116756, 207461886, 239032173, 268182438, 297175134, 318709564, 414923772, 478064346, 536364876, 594350268, 956128692, 1832579993, 3665159986, 5497739979, 7330319972, 10995479958, 21990959916]

約数ペア:

[(1, 21990959916), (2, 10995479958), (3, 7330319972), (4, 5497739979), (6, 3665159986), (12, 1832579993), (23, 956128692), (37, 594350268), (41, 536364876), (46, 478064346), (53, 414923772), (69, 318709564), (74, 297175134), (82, 268182438), (92, 239032173), (106, 207461886), (111, 198116756), (123, 178788292), (138, 159354782), (148, 148587567), (159, 138307924), (164, 134091219), (212, 103730943), (222, 99058378), (246, 89394146), (276, 79677391), (318, 69153962), (444, 49529189), (492, 44697073), (636, 34576981), (851, 25841316), (943, 23320212), (991, 22190676), (1219, 18040164), (1517, 14496348), (1702, 12920658), (1886, 11660106), (1961, 11214156), (1982, 11095338), (2173, 10120092), (2438, 9020082), (2553, 8613772), (2829, 7773404), (2973, 7396892), (3034, 7248174), (3404, 6460329), (3657, 6013388), (3772, 5830053), (3922, 5607078), (3964, 5547669), (4346, 5060046), (4551, 4832116), (4876, 4510041), (5106, 4306886), (5658, 3886702), (5883, 3738052), (5946, 3698446), (6068, 3624087), (6519, 3373364), (7314, 3006694), (7844, 2803539), (8692, 2530023), (9102, 2416058), (10212, 2153443), (11316, 1943351), (11766, 1869026), (11892, 1849223), (13038, 1686682), (14628, 1503347), (18204, 1208029), (22793, 964812), (23532, 934513), (26076, 843341), (34891, 630276), (36667, 599748), (40631, 541236), (45103, 487572), (45586, 482406), (49979, 440004), (52523, 418692), (68379, 321604), (69782, 315138), (73334, 299874), (80401, 273516), (81262, 270618), (90206, 243786), (91172, 241203), (99958, 220002), (104673, 210092), (105046, 209346), (110001, 199916), (121893, 180412), (135309, 162524), (136758, 160802), (139564, 157569), (146668, 149937)]