18720845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{26183}}^1$

素因数の和:26212

約数の個数: 16

約数和(自身を含む): 26393472

約数和(自身を除く): 7672627

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 26183, 130915, 288013, 340379, 1440065, 1701895, 3744169, 18720845]

約数ペア:

[(1, 18720845), (5, 3744169), (11, 1701895), (13, 1440065), (55, 340379), (65, 288013), (143, 130915), (715, 26183)]