20815992

素因数分解:

$2^3\times 3^2\times {\mathrm{289111}}^1$

素因数の和:289123

約数の個数: 24

約数和(自身を含む): 56376840

約数和(自身を除く): 35560848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 289111, 578222, 867333, 1156444, 1734666, 2312888, 2601999, 3469332, 5203998, 6938664, 10407996, 20815992]

約数ペア:

[(1, 20815992), (2, 10407996), (3, 6938664), (4, 5203998), (6, 3469332), (8, 2601999), (9, 2312888), (12, 1734666), (18, 1156444), (24, 867333), (36, 578222), (72, 289111)]