19840666

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8219}}^1$

素因数の和:8309

約数の個数: 16

約数和(自身を含む): 31959360

約数和(自身を除く): 12118694

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8219, 16438, 139723, 279446, 583549, 1167098, 9920333, 19840666]

約数ペア:

[(1, 19840666), (2, 9920333), (17, 1167098), (34, 583549), (71, 279446), (142, 139723), (1207, 16438), (2414, 8219)]