21294054145

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2141}}^1\times {\mathrm{21859}}^1$

素因数の和:24025

約数の個数: 32

約数和(自身を含む): 31465808640

約数和(自身を除く): 10171754495

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 2141, 10705, 14987, 21859, 27833, 74935, 109295, 139165, 153013, 194831, 284167, 765065, 974155, 1420835, 1989169, 9945845, 46800119, 234000595, 327600833, 608401547, 1638004165, 3042007735, 4258810829, 21294054145]

約数ペア:

[(1, 21294054145), (5, 4258810829), (7, 3042007735), (13, 1638004165), (35, 608401547), (65, 327600833), (91, 234000595), (455, 46800119), (2141, 9945845), (10705, 1989169), (14987, 1420835), (21859, 974155), (27833, 765065), (74935, 284167), (109295, 194831), (139165, 153013)]