20993570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{967}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 40981248

約数和(自身を除く): 19987678

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167, 334, 835, 967, 1670, 1934, 2171, 4342, 4835, 9670, 10855, 12571, 21710, 25142, 62855, 125710, 161489, 322978, 807445, 1614890, 2099357, 4198714, 10496785, 20993570]

約数ペア:

[(1, 20993570), (2, 10496785), (5, 4198714), (10, 2099357), (13, 1614890), (26, 807445), (65, 322978), (130, 161489), (167, 125710), (334, 62855), (835, 25142), (967, 21710), (1670, 12571), (1934, 10855), (2171, 9670), (4342, 4835)]