19959862

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7043}}^1$

素因数の和:7167

約数の個数: 16

約数和(自身を含む): 32543280

約数和(自身を除く): 12583418

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7043, 14086, 91559, 183118, 767687, 1535374, 9979931, 19959862]

約数ペア:

[(1, 19959862), (2, 9979931), (13, 1535374), (26, 767687), (109, 183118), (218, 91559), (1417, 14086), (2834, 7043)]