20197765

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{9781}}^1$

素因数の和:9852

約数の個数: 16

約数和(自身を含む): 28172160

約数和(自身を除く): 7974395

約数列:

[1, 5, 7, 35, 59, 295, 413, 2065, 9781, 48905, 68467, 342335, 577079, 2885395, 4039553, 20197765]

約数ペア:

[(1, 20197765), (5, 4039553), (7, 2885395), (35, 577079), (59, 342335), (295, 68467), (413, 48905), (2065, 9781)]