21420842

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{601}}^1$

素因数の和:925

約数の個数: 16

約数和(自身を含む): 32768064

約数和(自身を除く): 11347222

約数列:

[1, 2, 71, 142, 251, 502, 601, 1202, 17821, 35642, 42671, 85342, 150851, 301702, 10710421, 21420842]

約数ペア:

[(1, 21420842), (2, 10710421), (71, 301702), (142, 150851), (251, 85342), (502, 42671), (601, 35642), (1202, 17821)]