20163728

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7457}}^1$

素因数の和:7491

約数の個数: 30

約数和(自身を含む): 42309234

約数和(自身を除く): 22145506

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7457, 14914, 29828, 59656, 96941, 119312, 193882, 387764, 775528, 1260233, 1551056, 2520466, 5040932, 10081864, 20163728]

約数ペア:

[(1, 20163728), (2, 10081864), (4, 5040932), (8, 2520466), (13, 1551056), (16, 1260233), (26, 775528), (52, 387764), (104, 193882), (169, 119312), (208, 96941), (338, 59656), (676, 29828), (1352, 14914), (2704, 7457)]