18958121

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1151}}^1$

素因数の和:1352

約数の個数: 16

約数和(自身を含む): 23482368

約数和(自身を除く): 4524247

約数列:

[1, 7, 13, 91, 181, 1151, 1267, 2353, 8057, 14963, 16471, 104741, 208331, 1458317, 2708303, 18958121]

約数ペア:

[(1, 18958121), (7, 2708303), (13, 1458317), (91, 208331), (181, 104741), (1151, 16471), (1267, 14963), (2353, 8057)]