21296652

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 53851392

約数和(自身を除く): 32554740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 211, 422, 633, 647, 844, 1266, 1294, 1941, 2532, 2588, 2743, 3882, 5486, 7764, 8229, 8411, 10972, 16458, 16822, 25233, 32916, 33644, 50466, 100932, 136517, 273034, 409551, 546068, 819102, 1638204, 1774721, 3549442, 5324163, 7098884, 10648326, 21296652]

約数ペア:

[(1, 21296652), (2, 10648326), (3, 7098884), (4, 5324163), (6, 3549442), (12, 1774721), (13, 1638204), (26, 819102), (39, 546068), (52, 409551), (78, 273034), (156, 136517), (211, 100932), (422, 50466), (633, 33644), (647, 32916), (844, 25233), (1266, 16822), (1294, 16458), (1941, 10972), (2532, 8411), (2588, 8229), (2743, 7764), (3882, 5486)]