18660681

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{457}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 29174600

約数和(自身を除く): 10513919

約数列:

[1, 3, 9, 13, 39, 117, 349, 457, 1047, 1371, 3141, 4113, 4537, 5941, 13611, 17823, 40833, 53469, 159493, 478479, 1435437, 2073409, 6220227, 18660681]

約数ペア:

[(1, 18660681), (3, 6220227), (9, 2073409), (13, 1435437), (39, 478479), (117, 159493), (349, 53469), (457, 40833), (1047, 17823), (1371, 13611), (3141, 5941), (4113, 4537)]