19971952

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 160

約数和(自身を含む): 54996480

約数和(自身を除く): 35024528

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 29, 43, 44, 52, 56, 58, 77, 86, 88, 91, 104, 112, 116, 143, 154, 172, 176, 182, 203, 208, 232, 286, 301, 308, 319, 344, 364, 377, 406, 464, 473, 559, 572, 602, 616, 638, 688, 728, 754, 812, 946, 1001, 1118, 1144, 1204, 1232, 1247, 1276, 1456, 1508, 1624, 1892, 2002, 2233, 2236, 2288, 2408, 2494, 2552, 2639, 3016, 3248, 3311, 3784, 3913, 4004, 4147, 4466, 4472, 4816, 4988, 5104, 5278, 6032, 6149, 6622, 7568, 7826, 8008, 8294, 8729, 8932, 8944, 9976, 10556, 12298, 13244, 13717, 15652, 16016, 16211, 16588, 17458, 17864, 19952, 21112, 24596, 26488, 27434, 29029, 31304, 32422, 33176, 34916, 35728, 42224, 43043, 49192, 52976, 54868, 58058, 62608, 64844, 66352, 69832, 86086, 96019, 98384, 109736, 113477, 116116, 129688, 139664, 172172, 178321, 192038, 219472, 226954, 232232, 259376, 344344, 356642, 384076, 453908, 464464, 688688, 713284, 768152, 907816, 1248247, 1426568, 1536304, 1815632, 2496494, 2853136, 4992988, 9985976, 19971952]

約数ペア:

[(1, 19971952), (2, 9985976), (4, 4992988), (7, 2853136), (8, 2496494), (11, 1815632), (13, 1536304), (14, 1426568), (16, 1248247), (22, 907816), (26, 768152), (28, 713284), (29, 688688), (43, 464464), (44, 453908), (52, 384076), (56, 356642), (58, 344344), (77, 259376), (86, 232232), (88, 226954), (91, 219472), (104, 192038), (112, 178321), (116, 172172), (143, 139664), (154, 129688), (172, 116116), (176, 113477), (182, 109736), (203, 98384), (208, 96019), (232, 86086), (286, 69832), (301, 66352), (308, 64844), (319, 62608), (344, 58058), (364, 54868), (377, 52976), (406, 49192), (464, 43043), (473, 42224), (559, 35728), (572, 34916), (602, 33176), (616, 32422), (638, 31304), (688, 29029), (728, 27434), (754, 26488), (812, 24596), (946, 21112), (1001, 19952), (1118, 17864), (1144, 17458), (1204, 16588), (1232, 16211), (1247, 16016), (1276, 15652), (1456, 13717), (1508, 13244), (1624, 12298), (1892, 10556), (2002, 9976), (2233, 8944), (2236, 8932), (2288, 8729), (2408, 8294), (2494, 8008), (2552, 7826), (2639, 7568), (3016, 6622), (3248, 6149), (3311, 6032), (3784, 5278), (3913, 5104), (4004, 4988), (4147, 4816), (4466, 4472)]