21166065

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4657}}^1$

素因数の和:4769

約数の個数: 24

約数和(自身を含む): 37059048

約数和(自身を除く): 15892983

約数列:

[1, 3, 5, 9, 15, 45, 101, 303, 505, 909, 1515, 4545, 4657, 13971, 23285, 41913, 69855, 209565, 470357, 1411071, 2351785, 4233213, 7055355, 21166065]

約数ペア:

[(1, 21166065), (3, 7055355), (5, 4233213), (9, 2351785), (15, 1411071), (45, 470357), (101, 209565), (303, 69855), (505, 41913), (909, 23285), (1515, 13971), (4545, 4657)]