28486717

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 33374592

約数和(自身を除く): 4887875

約数列:

[1, 7, 73, 107, 511, 521, 749, 3647, 7811, 38033, 54677, 55747, 266231, 390229, 4069531, 28486717]

約数ペア:

[(1, 28486717), (7, 4069531), (73, 390229), (107, 266231), (511, 55747), (521, 54677), (749, 38033), (3647, 7811)]