19787842

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:825

約数の個数: 16

約数和(自身を含む): 30262464

約数和(自身を除く): 10474622

約数列:

[1, 2, 71, 142, 331, 421, 662, 842, 23501, 29891, 47002, 59782, 139351, 278702, 9893921, 19787842]

約数ペア:

[(1, 19787842), (2, 9893921), (71, 278702), (142, 139351), (331, 59782), (421, 47002), (662, 29891), (842, 23501)]