21164495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{4871}}^1$

素因数の和:4966

約数の個数: 16

約数和(自身を含む): 28062720

約数和(自身を除く): 6898225

約数列:

[1, 5, 11, 55, 79, 395, 869, 4345, 4871, 24355, 53581, 267905, 384809, 1924045, 4232899, 21164495]

約数ペア:

[(1, 21164495), (5, 4232899), (11, 1924045), (55, 384809), (79, 267905), (395, 53581), (869, 24355), (4345, 4871)]