18981318

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{73571}}^1$

素因数の和:73619

約数の個数: 16

約数和(自身を含む): 38846016

約数和(自身を除く): 19864698

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 73571, 147142, 220713, 441426, 3163553, 6327106, 9490659, 18981318]

約数ペア:

[(1, 18981318), (2, 9490659), (3, 6327106), (6, 3163553), (43, 441426), (86, 220713), (129, 147142), (258, 73571)]