21000724789

素因数分解:

${\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{1248631}}^1$

素因数の和:1248792

約数の個数: 12

約数和(自身を含む): 23249527840

約数和(自身を除く): 2248803051

約数列:

[1, 11, 121, 139, 1529, 16819, 1248631, 13734941, 151084351, 173559709, 1909156799, 21000724789]

約数ペア:

[(1, 21000724789), (11, 1909156799), (121, 173559709), (139, 151084351), (1529, 13734941), (16819, 1248631)]