20511545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3041}}^1$

素因数の和:3136

約数の個数: 16

約数和(自身を含む): 26282880

約数和(自身を除く): 5771335

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3041, 6745, 15205, 57779, 215911, 288895, 1079555, 4102309, 20511545]

約数ペア:

[(1, 20511545), (5, 4102309), (19, 1079555), (71, 288895), (95, 215911), (355, 57779), (1349, 15205), (3041, 6745)]