21960029

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 28635840

約数和(自身を除く): 6675811

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 977, 1183, 1729, 3211, 6839, 12701, 18563, 22477, 88907, 129941, 165113, 241319, 1155791, 1689233, 3137147, 21960029]

約数ペア:

[(1, 21960029), (7, 3137147), (13, 1689233), (19, 1155791), (91, 241319), (133, 165113), (169, 129941), (247, 88907), (977, 22477), (1183, 18563), (1729, 12701), (3211, 6839)]