21729624

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{613}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 62480640

約数和(自身を除く): 40751016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 211, 422, 613, 633, 844, 1226, 1266, 1477, 1688, 1839, 2452, 2532, 2954, 3678, 4291, 4431, 4904, 5064, 5908, 7356, 8582, 8862, 11816, 12873, 14712, 17164, 17724, 25746, 34328, 35448, 51492, 102984, 129343, 258686, 388029, 517372, 776058, 905401, 1034744, 1552116, 1810802, 2716203, 3104232, 3621604, 5432406, 7243208, 10864812, 21729624]

約数ペア:

[(1, 21729624), (2, 10864812), (3, 7243208), (4, 5432406), (6, 3621604), (7, 3104232), (8, 2716203), (12, 1810802), (14, 1552116), (21, 1034744), (24, 905401), (28, 776058), (42, 517372), (56, 388029), (84, 258686), (168, 129343), (211, 102984), (422, 51492), (613, 35448), (633, 34328), (844, 25746), (1226, 17724), (1266, 17164), (1477, 14712), (1688, 12873), (1839, 11816), (2452, 8862), (2532, 8582), (2954, 7356), (3678, 5908), (4291, 5064), (4431, 4904)]