20105595

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4099}}^1$

素因数の和:4219

約数の個数: 24

約数和(自身を含む): 35178000

約数和(自身を除く): 15072405

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4099, 4905, 12297, 20495, 36891, 61485, 184455, 446791, 1340373, 2233955, 4021119, 6701865, 20105595]

約数ペア:

[(1, 20105595), (3, 6701865), (5, 4021119), (9, 2233955), (15, 1340373), (45, 446791), (109, 184455), (327, 61485), (545, 36891), (981, 20495), (1635, 12297), (4099, 4905)]