20072899

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 25740288

約数和(自身を除く): 5667389

約数列:

[1, 7, 11, 49, 77, 167, 223, 539, 1169, 1561, 1837, 2453, 8183, 10927, 12859, 17171, 37241, 90013, 120197, 260687, 409651, 1824809, 2867557, 20072899]

約数ペア:

[(1, 20072899), (7, 2867557), (11, 1824809), (49, 409651), (77, 260687), (167, 120197), (223, 90013), (539, 37241), (1169, 17171), (1561, 12859), (1837, 10927), (2453, 8183)]