19636981

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6961}}^1$

素因数の和:7012

約数の個数: 16

約数和(自身を含む): 24951808

約数和(自身を除く): 5314827

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 6961, 48727, 90493, 215791, 633451, 1510537, 2805283, 19636981]

約数ペア:

[(1, 19636981), (7, 2805283), (13, 1510537), (31, 633451), (91, 215791), (217, 90493), (403, 48727), (2821, 6961)]