11721820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53281}}^1$

素因数の和:53301

約数の個数: 24

約数和(自身を含む): 26854128

約数和(自身を除く): 15132308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 53281, 106562, 213124, 266405, 532810, 586091, 1065620, 1172182, 2344364, 2930455, 5860910, 11721820]

約数ペア:

[(1, 11721820), (2, 5860910), (4, 2930455), (5, 2344364), (10, 1172182), (11, 1065620), (20, 586091), (22, 532810), (44, 266405), (55, 213124), (110, 106562), (220, 53281)]