21581202

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{27457}}^1$

素因数の和:27593

約数の個数: 16

約数和(自身を含む): 43493472

約数和(自身を除く): 21912270

約数列:

[1, 2, 3, 6, 131, 262, 393, 786, 27457, 54914, 82371, 164742, 3596867, 7193734, 10790601, 21581202]

約数ペア:

[(1, 21581202), (2, 10790601), (3, 7193734), (6, 3596867), (131, 164742), (262, 82371), (393, 54914), (786, 27457)]