20445867

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4723}}^1$

素因数の和:4779

約数の個数: 24

約数和(自身を含む): 32671184

約数和(自身を除く): 12225317

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 4723, 14169, 42507, 61399, 174751, 184197, 524253, 552591, 1572759, 2271763, 6815289, 20445867]

約数ペア:

[(1, 20445867), (3, 6815289), (9, 2271763), (13, 1572759), (37, 552591), (39, 524253), (111, 184197), (117, 174751), (333, 61399), (481, 42507), (1443, 14169), (4329, 4723)]