20000907

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{809}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 30073680

約数和(自身を除く): 10072773

約数列:

[1, 3, 9, 41, 67, 123, 201, 369, 603, 809, 2427, 2747, 7281, 8241, 24723, 33169, 54203, 99507, 162609, 298521, 487827, 2222323, 6666969, 20000907]

約数ペア:

[(1, 20000907), (3, 6666969), (9, 2222323), (41, 487827), (67, 298521), (123, 162609), (201, 99507), (369, 54203), (603, 33169), (809, 24723), (2427, 8241), (2747, 7281)]