30981839

素因数分解:

$7^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 37685088

約数和(自身を除く): 6703249

約数列:

[1, 7, 37, 53, 61, 259, 371, 427, 1369, 1961, 2257, 3233, 9583, 13727, 15799, 22631, 72557, 83509, 119621, 507899, 584563, 837347, 4425977, 30981839]

約数ペア:

[(1, 30981839), (7, 4425977), (37, 837347), (53, 584563), (61, 507899), (259, 119621), (371, 83509), (427, 72557), (1369, 22631), (1961, 15799), (2257, 13727), (3233, 9583)]