21731106677

素因数分解:

$7^2\times {\mathrm{647}}^1\times {\mathrm{685459}}^1$

素因数の和:686120

約数の個数: 12

約数和(自身を含む): 25318150560

約数和(自身を除く): 3587043883

約数列:

[1, 7, 49, 647, 4529, 31703, 685459, 4798213, 33587491, 443491973, 3104443811, 21731106677]

約数ペア:

[(1, 21731106677), (7, 3104443811), (49, 443491973), (647, 33587491), (4529, 4798213), (31703, 685459)]