21425327

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{4153}}^1$

素因数の和:4238

約数の個数: 16

約数和(自身を含む): 27117312

約数和(自身を除く): 5691985

約数列:

[1, 7, 11, 67, 77, 469, 737, 4153, 5159, 29071, 45683, 278251, 319781, 1947757, 3060761, 21425327]

約数ペア:

[(1, 21425327), (7, 3060761), (11, 1947757), (67, 319781), (77, 278251), (469, 45683), (737, 29071), (4153, 5159)]