21564686

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{75401}}^1$

素因数の和:75427

約数の個数: 16

約数和(自身を含む): 38002608

約数和(自身を除く): 16437922

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 75401, 150802, 829411, 980213, 1658822, 1960426, 10782343, 21564686]

約数ペア:

[(1, 21564686), (2, 10782343), (11, 1960426), (13, 1658822), (22, 980213), (26, 829411), (143, 150802), (286, 75401)]