12837345

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 21288960

約数和(自身を除く): 8451615

約数列:

[1, 3, 5, 15, 47, 131, 139, 141, 235, 393, 417, 655, 695, 705, 1965, 2085, 6157, 6533, 18209, 18471, 19599, 30785, 32665, 54627, 91045, 92355, 97995, 273135, 855823, 2567469, 4279115, 12837345]

約数ペア:

[(1, 12837345), (3, 4279115), (5, 2567469), (15, 855823), (47, 273135), (131, 97995), (139, 92355), (141, 91045), (235, 54627), (393, 32665), (417, 30785), (655, 19599), (695, 18471), (705, 18209), (1965, 6533), (2085, 6157)]