18687045

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1653

約数の個数: 32

約数和(自身を含む): 32747904

約数和(自身を除く): 14060859

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1571, 2379, 3965, 4713, 7855, 11895, 20423, 23565, 61269, 95831, 102115, 287493, 306345, 479155, 1245803, 1437465, 3737409, 6229015, 18687045]

約数ペア:

[(1, 18687045), (3, 6229015), (5, 3737409), (13, 1437465), (15, 1245803), (39, 479155), (61, 306345), (65, 287493), (183, 102115), (195, 95831), (305, 61269), (793, 23565), (915, 20423), (1571, 11895), (2379, 7855), (3965, 4713)]