21465631

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^2$

素因数の和:390

約数の個数: 12

約数和(自身を含む): 23820264

約数和(自身を除く): 2354633

約数列:

[1, 11, 101, 139, 1111, 1529, 14039, 19321, 154429, 212531, 1951421, 21465631]

約数ペア:

[(1, 21465631), (11, 1951421), (101, 212531), (139, 154429), (1111, 19321), (1529, 14039)]