18998505

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13619}}^1$

素因数の和:13661

約数の個数: 24

約数和(自身を含む): 33995520

約数和(自身を除く): 14997015

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 13619, 40857, 68095, 122571, 204285, 422189, 612855, 1266567, 2110945, 3799701, 6332835, 18998505]

約数ペア:

[(1, 18998505), (3, 6332835), (5, 3799701), (9, 2110945), (15, 1266567), (31, 612855), (45, 422189), (93, 204285), (155, 122571), (279, 68095), (465, 40857), (1395, 13619)]