21606993

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{4373}}^1$

素因数の和:4446

約数の個数: 20

約数和(自身を含む): 32813748

約数和(自身を除く): 11206755

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4373, 4941, 13119, 39357, 118071, 266753, 354213, 800259, 2400777, 7202331, 21606993]

約数ペア:

[(1, 21606993), (3, 7202331), (9, 2400777), (27, 800259), (61, 354213), (81, 266753), (183, 118071), (549, 39357), (1647, 13119), (4373, 4941)]