17887961

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 24127488

約数和(自身を除く): 6239527

約数列:

[1, 7, 13, 17, 31, 91, 119, 217, 221, 373, 403, 527, 1547, 2611, 2821, 3689, 4849, 6341, 6851, 11563, 33943, 44387, 47957, 80941, 82433, 150319, 196571, 577031, 1052233, 1375997, 2555423, 17887961]

約数ペア:

[(1, 17887961), (7, 2555423), (13, 1375997), (17, 1052233), (31, 577031), (91, 196571), (119, 150319), (217, 82433), (221, 80941), (373, 47957), (403, 44387), (527, 33943), (1547, 11563), (2611, 6851), (2821, 6341), (3689, 4849)]