21581010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21799}}^1$

素因数の和:21823

約数の個数: 48

約数和(自身を含む): 61214400

約数和(自身を除く): 39633390

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21799, 43598, 65397, 108995, 130794, 196191, 217990, 239789, 326985, 392382, 479578, 653970, 719367, 980955, 1198945, 1438734, 1961910, 2158101, 2397890, 3596835, 4316202, 7193670, 10790505, 21581010]

約数ペア:

[(1, 21581010), (2, 10790505), (3, 7193670), (5, 4316202), (6, 3596835), (9, 2397890), (10, 2158101), (11, 1961910), (15, 1438734), (18, 1198945), (22, 980955), (30, 719367), (33, 653970), (45, 479578), (55, 392382), (66, 326985), (90, 239789), (99, 217990), (110, 196191), (165, 130794), (198, 108995), (330, 65397), (495, 43598), (990, 21799)]