20783478

素因数分解:

$2^1\times 3^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 21725322

約数列:

[1, 2, 3, 6, 79, 158, 163, 237, 269, 326, 474, 489, 538, 807, 978, 1614, 12877, 21251, 25754, 38631, 42502, 43847, 63753, 77262, 87694, 127506, 131541, 263082, 3463913, 6927826, 10391739, 20783478]

約数ペア:

[(1, 20783478), (2, 10391739), (3, 6927826), (6, 3463913), (79, 263082), (158, 131541), (163, 127506), (237, 87694), (269, 77262), (326, 63753), (474, 43847), (489, 42502), (538, 38631), (807, 25754), (978, 21251), (1614, 12877)]