991230513

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191099}}^1$

素因数の和:191141

約数の個数: 32

約数和(自身を含む): 1712256000

約数和(自身を除く): 721025487

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 191099, 573297, 1337693, 2484287, 3630881, 4013079, 7452861, 10892643, 17390009, 25416167, 47201453, 52170027, 76248501, 141604359, 330410171, 991230513]

約数ペア:

[(1, 991230513), (3, 330410171), (7, 141604359), (13, 76248501), (19, 52170027), (21, 47201453), (39, 25416167), (57, 17390009), (91, 10892643), (133, 7452861), (247, 4013079), (273, 3630881), (399, 2484287), (741, 1337693), (1729, 573297), (5187, 191099)]