21294481

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{311}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 24111360

約数和(自身を除く): 2816879

約数列:

[1, 13, 23, 229, 299, 311, 2977, 4043, 5267, 7153, 68471, 71219, 92989, 925847, 1638037, 21294481]

約数ペア:

[(1, 21294481), (13, 1638037), (23, 925847), (229, 92989), (299, 71219), (311, 68471), (2977, 7153), (4043, 5267)]