20219025

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{3797}}^1$

素因数の和:3881

約数の個数: 24

約数和(自身を含む): 33908544

約数和(自身を除く): 13689519

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 3797, 5325, 11391, 18985, 56955, 94925, 269587, 284775, 808761, 1347935, 4043805, 6739675, 20219025]

約数ペア:

[(1, 20219025), (3, 6739675), (5, 4043805), (15, 1347935), (25, 808761), (71, 284775), (75, 269587), (213, 94925), (355, 56955), (1065, 18985), (1775, 11391), (3797, 5325)]