21552461

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{601}}^1$

素因数の和:764

約数の個数: 16

約数和(自身を含む): 25428480

約数和(自身を除く): 3876019

約数列:

[1, 7, 47, 109, 329, 601, 763, 4207, 5123, 28247, 35861, 65509, 197729, 458563, 3078923, 21552461]

約数ペア:

[(1, 21552461), (7, 3078923), (47, 458563), (109, 197729), (329, 65509), (601, 35861), (763, 28247), (4207, 5123)]