18815745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2053}}^1$

素因数の和:2121

約数の個数: 32

約数和(自身を含む): 33126912

約数和(自身を除く): 14311167

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2053, 3055, 6159, 9165, 10265, 26689, 30795, 80067, 96491, 133445, 289473, 400335, 482455, 1254383, 1447365, 3763149, 6271915, 18815745]

約数ペア:

[(1, 18815745), (3, 6271915), (5, 3763149), (13, 1447365), (15, 1254383), (39, 482455), (47, 400335), (65, 289473), (141, 133445), (195, 96491), (235, 80067), (611, 30795), (705, 26689), (1833, 10265), (2053, 9165), (3055, 6159)]