20974814

素因数分解:

$2^1\times 7^1\times {\mathrm{677}}^1\times {\mathrm{2213}}^1$

素因数の和:2899

約数の個数: 16

約数和(自身を含む): 36026208

約数和(自身を除く): 15051394

約数列:

[1, 2, 7, 14, 677, 1354, 2213, 4426, 4739, 9478, 15491, 30982, 1498201, 2996402, 10487407, 20974814]

約数ペア:

[(1, 20974814), (2, 10487407), (7, 2996402), (14, 1498201), (677, 30982), (1354, 15491), (2213, 9478), (4426, 4739)]