15961385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 22695552

約数和(自身を除く): 6734167

約数列:

[1, 5, 11, 17, 43, 55, 85, 187, 215, 397, 473, 731, 935, 1985, 2365, 3655, 4367, 6749, 8041, 17071, 21835, 33745, 40205, 74239, 85355, 187781, 290207, 371195, 938905, 1451035, 3192277, 15961385]

約数ペア:

[(1, 15961385), (5, 3192277), (11, 1451035), (17, 938905), (43, 371195), (55, 290207), (85, 187781), (187, 85355), (215, 74239), (397, 40205), (473, 33745), (731, 21835), (935, 17071), (1985, 8041), (2365, 6749), (3655, 4367)]