19819807

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{1103}}^1$

素因数の和:1278

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 4344545

約数列:

[1, 7, 17, 119, 151, 1057, 1103, 2567, 7721, 17969, 18751, 131257, 166553, 1165871, 2831401, 19819807]

約数ペア:

[(1, 19819807), (7, 2831401), (17, 1165871), (119, 166553), (151, 131257), (1057, 18751), (1103, 17969), (2567, 7721)]