18919875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3881}}^1$

素因数の和:3912

約数の個数: 32

約数和(自身を含む): 33913152

約数和(自身を除く): 14993277

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 3881, 4875, 11643, 19405, 50453, 58215, 97025, 151359, 252265, 291075, 485125, 756795, 1261325, 1455375, 3783975, 6306625, 18919875]

約数ペア:

[(1, 18919875), (3, 6306625), (5, 3783975), (13, 1455375), (15, 1261325), (25, 756795), (39, 485125), (65, 291075), (75, 252265), (125, 151359), (195, 97025), (325, 58215), (375, 50453), (975, 19405), (1625, 11643), (3881, 4875)]