21179053

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2699}}^1$

素因数の和:2784

約数の個数: 16

約数和(自身を含む): 25920000

約数和(自身を除く): 4740947

約数列:

[1, 7, 19, 59, 133, 413, 1121, 2699, 7847, 18893, 51281, 159241, 358967, 1114687, 3025579, 21179053]

約数ペア:

[(1, 21179053), (7, 3025579), (19, 1114687), (59, 358967), (133, 159241), (413, 51281), (1121, 18893), (2699, 7847)]