21809969145

素因数分解:

$3^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{310087}}^1$

素因数の和:310622

約数の個数: 32

約数和(自身を含む): 38847824640

約数和(自身を除く): 17037855495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 521, 1563, 2605, 4689, 7815, 14067, 23445, 70335, 310087, 930261, 1550435, 2790783, 4651305, 8372349, 13953915, 41861745, 161555327, 484665981, 807776635, 1453997943, 2423329905, 4361993829, 7269989715, 21809969145]

約数ペア:

[(1, 21809969145), (3, 7269989715), (5, 4361993829), (9, 2423329905), (15, 1453997943), (27, 807776635), (45, 484665981), (135, 161555327), (521, 41861745), (1563, 13953915), (2605, 8372349), (4689, 4651305), (7815, 2790783), (14067, 1550435), (23445, 930261), (70335, 310087)]