28457961

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{563}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 45480960

約数和(自身を除く): 17022999

約数列:

[1, 3, 7, 21, 29, 83, 87, 203, 249, 563, 581, 609, 1689, 1743, 2407, 3941, 7221, 11823, 16327, 16849, 46729, 48981, 50547, 114289, 140187, 327103, 342867, 981309, 1355141, 4065423, 9485987, 28457961]

約数ペア:

[(1, 28457961), (3, 9485987), (7, 4065423), (21, 1355141), (29, 981309), (83, 342867), (87, 327103), (203, 140187), (249, 114289), (563, 50547), (581, 48981), (609, 46729), (1689, 16849), (1743, 16327), (2407, 11823), (3941, 7221)]