20638518

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{64901}}^1$

素因数の和:64959

約数の個数: 16

約数和(自身を含む): 42056496

約数和(自身を除く): 21417978

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 64901, 129802, 194703, 389406, 3439753, 6879506, 10319259, 20638518]

約数ペア:

[(1, 20638518), (2, 10319259), (3, 6879506), (6, 3439753), (53, 389406), (106, 194703), (159, 129802), (318, 64901)]