18503863

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 21614400

約数和(自身を除く): 3110537

約数列:

[1, 7, 113, 149, 157, 791, 1043, 1099, 16837, 17741, 23393, 117859, 124187, 163751, 2643409, 18503863]

約数ペア:

[(1, 18503863), (7, 2643409), (113, 163751), (149, 124187), (157, 117859), (791, 23393), (1043, 17741), (1099, 16837)]