21284028

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1$

素因数の和:124

約数の個数: 108

約数和(自身を含む): 60238360

約数和(自身を除く): 38954332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 37, 38, 57, 58, 74, 76, 87, 111, 114, 116, 148, 171, 174, 222, 228, 261, 333, 342, 348, 444, 522, 551, 666, 684, 703, 841, 1044, 1073, 1102, 1332, 1406, 1653, 1682, 2109, 2146, 2204, 2523, 2812, 3219, 3306, 3364, 4218, 4292, 4959, 5046, 6327, 6438, 6612, 7569, 8436, 9657, 9918, 10092, 12654, 12876, 15138, 15979, 19314, 19836, 20387, 25308, 30276, 31117, 31958, 38628, 40774, 47937, 61161, 62234, 63916, 81548, 93351, 95874, 122322, 124468, 143811, 183483, 186702, 191748, 244644, 280053, 287622, 366966, 373404, 560106, 575244, 591223, 733932, 1120212, 1182446, 1773669, 2364892, 3547338, 5321007, 7094676, 10642014, 21284028]

約数ペア:

[(1, 21284028), (2, 10642014), (3, 7094676), (4, 5321007), (6, 3547338), (9, 2364892), (12, 1773669), (18, 1182446), (19, 1120212), (29, 733932), (36, 591223), (37, 575244), (38, 560106), (57, 373404), (58, 366966), (74, 287622), (76, 280053), (87, 244644), (111, 191748), (114, 186702), (116, 183483), (148, 143811), (171, 124468), (174, 122322), (222, 95874), (228, 93351), (261, 81548), (333, 63916), (342, 62234), (348, 61161), (444, 47937), (522, 40774), (551, 38628), (666, 31958), (684, 31117), (703, 30276), (841, 25308), (1044, 20387), (1073, 19836), (1102, 19314), (1332, 15979), (1406, 15138), (1653, 12876), (1682, 12654), (2109, 10092), (2146, 9918), (2204, 9657), (2523, 8436), (2812, 7569), (3219, 6612), (3306, 6438), (3364, 6327), (4218, 5046), (4292, 4959)]