18672220007

素因数分解:

$7^1\times {\mathrm{659}}^1\times {\mathrm{4047739}}^1$

素因数の和:4048405

約数の個数: 8

約数和(自身を含む): 21372067200

約数和(自身を除く): 2699847193

約数列:

[1, 7, 659, 4613, 4047739, 28334173, 2667460001, 18672220007]

約数ペア:

[(1, 18672220007), (7, 2667460001), (659, 28334173), (4613, 4047739)]