1390346721

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{971591}}^1$

素因数の和:971653

約数の個数: 16

約数和(自身を含む): 2098638720

約数和(自身を除く): 708291999

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 971591, 2914773, 8744319, 26232957, 51494323, 154482969, 463448907, 1390346721]

約数ペア:

[(1, 1390346721), (3, 463448907), (9, 154482969), (27, 51494323), (53, 26232957), (159, 8744319), (477, 2914773), (1431, 971591)]