257865471

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{1613}}^1$

素因数の和:1844

約数の個数: 32

約数和(自身を含む): 396656640

約数和(自身を除く): 138791169

約数列:

[1, 3, 9, 27, 31, 93, 191, 279, 573, 837, 1613, 1719, 4839, 5157, 5921, 14517, 17763, 43551, 50003, 53289, 150009, 159867, 308083, 450027, 924249, 1350081, 2772747, 8318241, 9550573, 28651719, 85955157, 257865471]

約数ペア:

[(1, 257865471), (3, 85955157), (9, 28651719), (27, 9550573), (31, 8318241), (93, 2772747), (191, 1350081), (279, 924249), (573, 450027), (837, 308083), (1613, 159867), (1719, 150009), (4839, 53289), (5157, 50003), (5921, 43551), (14517, 17763)]