20455455

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19207}}^1$

素因数の和:19286

約数の個数: 16

約数和(自身を含む): 33191424

約数和(自身を除く): 12735969

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19207, 57621, 96035, 288105, 1363697, 4091091, 6818485, 20455455]

約数ペア:

[(1, 20455455), (3, 6818485), (5, 4091091), (15, 1363697), (71, 288105), (213, 96035), (355, 57621), (1065, 19207)]