20495251

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1097}}^1$

素因数の和:1278

約数の個数: 16

約数和(自身を含む): 24981696

約数和(自身を除く): 4486445

約数列:

[1, 7, 17, 119, 157, 1097, 1099, 2669, 7679, 18649, 18683, 130543, 172229, 1205603, 2927893, 20495251]

約数ペア:

[(1, 20495251), (7, 2927893), (17, 1205603), (119, 172229), (157, 130543), (1097, 18683), (1099, 18649), (2669, 7679)]