21435765

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2971}}^1$

素因数の和:3029

約数の個数: 32

約数和(自身を含む): 37946496

約数和(自身を除く): 16510731

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 2971, 7215, 8913, 14855, 38623, 44565, 109927, 115869, 193115, 329781, 549635, 579345, 1429051, 1648905, 4287153, 7145255, 21435765]

約数ペア:

[(1, 21435765), (3, 7145255), (5, 4287153), (13, 1648905), (15, 1429051), (37, 579345), (39, 549635), (65, 329781), (111, 193115), (185, 115869), (195, 109927), (481, 44565), (555, 38623), (1443, 14855), (2405, 8913), (2971, 7215)]