20406742

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2\times {\mathrm{149}}^1$

素因数の和:276

約数の個数: 24

約数和(自身を含む): 32500800

約数和(自身を除く): 12094058

約数列:

[1, 2, 31, 47, 62, 94, 149, 298, 1457, 2209, 2914, 4418, 4619, 7003, 9238, 14006, 68479, 136958, 217093, 329141, 434186, 658282, 10203371, 20406742]

約数ペア:

[(1, 20406742), (2, 10203371), (31, 658282), (47, 434186), (62, 329141), (94, 217093), (149, 136958), (298, 68479), (1457, 14006), (2209, 9238), (2914, 7003), (4418, 4619)]