20405086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{1213}}^1$

素因数の和:1875

約数の個数: 16

約数和(自身を含む): 33040224

約数和(自身を除く): 12635138

約数列:

[1, 2, 13, 26, 647, 1213, 1294, 2426, 8411, 15769, 16822, 31538, 784811, 1569622, 10202543, 20405086]

約数ペア:

[(1, 20405086), (2, 10202543), (13, 1569622), (26, 784811), (647, 31538), (1213, 16822), (1294, 15769), (2426, 8411)]