18933135

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{643}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 32890368

約数和(自身を除く): 13957233

約数列:

[1, 3, 5, 13, 15, 39, 65, 151, 195, 453, 643, 755, 1929, 1963, 2265, 3215, 5889, 8359, 9645, 9815, 25077, 29445, 41795, 97093, 125385, 291279, 485465, 1262209, 1456395, 3786627, 6311045, 18933135]

約数ペア:

[(1, 18933135), (3, 6311045), (5, 3786627), (13, 1456395), (15, 1262209), (39, 485465), (65, 291279), (151, 125385), (195, 97093), (453, 41795), (643, 29445), (755, 25077), (1929, 9815), (1963, 9645), (2265, 8359), (3215, 5889)]