255701481

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1\times {\mathrm{349}}^1$

素因数の和:749

約数の個数: 32

約数和(自身を含む): 395136000

約数和(自身を除く): 139434519

約数列:

[1, 3, 7, 21, 139, 251, 349, 417, 753, 973, 1047, 1757, 2443, 2919, 5271, 7329, 34889, 48511, 87599, 104667, 145533, 244223, 262797, 339577, 613193, 732669, 1018731, 1839579, 12176261, 36528783, 85233827, 255701481]

約数ペア:

[(1, 255701481), (3, 85233827), (7, 36528783), (21, 12176261), (139, 1839579), (251, 1018731), (349, 732669), (417, 613193), (753, 339577), (973, 262797), (1047, 244223), (1757, 145533), (2443, 104667), (2919, 87599), (5271, 48511), (7329, 34889)]