21072310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{653}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 43509312

約数和(自身を除く): 22437002

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 461, 653, 922, 1306, 2305, 3227, 3265, 4571, 4610, 6454, 6530, 9142, 16135, 22855, 32270, 45710, 301033, 602066, 1505165, 2107231, 3010330, 4214462, 10536155, 21072310]

約数ペア:

[(1, 21072310), (2, 10536155), (5, 4214462), (7, 3010330), (10, 2107231), (14, 1505165), (35, 602066), (70, 301033), (461, 45710), (653, 32270), (922, 22855), (1306, 16135), (2305, 9142), (3227, 6530), (3265, 6454), (4571, 4610)]