788590971

素因数分解:

$3^4\times 7^1\times {\mathrm{1390813}}^1$

素因数の和:1390832

約数の個数: 20

約数和(自身を含む): 1346307952

約数和(自身を除く): 557716981

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1390813, 4172439, 9735691, 12517317, 29207073, 37551951, 87621219, 112655853, 262863657, 788590971]

約数ペア:

[(1, 788590971), (3, 262863657), (7, 112655853), (9, 87621219), (21, 37551951), (27, 29207073), (63, 12517317), (81, 9735691), (189, 4172439), (567, 1390813)]