20531538

素因数分解:

$2^1\times 3^2\times {\mathrm{991}}^1\times {\mathrm{1151}}^1$

素因数の和:2150

約数の個数: 24

約数和(自身を含む): 44568576

約数和(自身を除く): 24037038

約数列:

[1, 2, 3, 6, 9, 18, 991, 1151, 1982, 2302, 2973, 3453, 5946, 6906, 8919, 10359, 17838, 20718, 1140641, 2281282, 3421923, 6843846, 10265769, 20531538]

約数ペア:

[(1, 20531538), (2, 10265769), (3, 6843846), (6, 3421923), (9, 2281282), (18, 1140641), (991, 20718), (1151, 17838), (1982, 10359), (2302, 8919), (2973, 6906), (3453, 5946)]