21057461570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2357}}^1\times {\mathrm{52553}}^1$

素因数の和:54934

約数の個数: 32

約数和(自身を含む): 40150835568

約数和(自身を除く): 19093373998

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 2357, 4714, 11785, 23570, 40069, 52553, 80138, 105106, 200345, 262765, 400690, 525530, 893401, 1786802, 4467005, 8934010, 123867421, 247734842, 619337105, 1238674210, 2105746157, 4211492314, 10528730785, 21057461570]

約数ペア:

[(1, 21057461570), (2, 10528730785), (5, 4211492314), (10, 2105746157), (17, 1238674210), (34, 619337105), (85, 247734842), (170, 123867421), (2357, 8934010), (4714, 4467005), (11785, 1786802), (23570, 893401), (40069, 525530), (52553, 400690), (80138, 262765), (105106, 200345)]