20520708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131543}}^1$

素因数の和:131563

約数の個数: 24

約数和(自身を含む): 51565248

約数和(自身を除く): 31044540

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 131543, 263086, 394629, 526172, 789258, 1578516, 1710059, 3420118, 5130177, 6840236, 10260354, 20520708]

約数ペア:

[(1, 20520708), (2, 10260354), (3, 6840236), (4, 5130177), (6, 3420118), (12, 1710059), (13, 1578516), (26, 789258), (39, 526172), (52, 394629), (78, 263086), (156, 131543)]