18880701

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5197}}^1$

素因数の和:5380

約数の個数: 16

約数和(自身を含む): 28942464

約数和(自身を除く): 10061763

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5197, 15591, 36379, 109137, 899081, 2697243, 6293567, 18880701]

約数ペア:

[(1, 18880701), (3, 6293567), (7, 2697243), (21, 899081), (173, 109137), (519, 36379), (1211, 15591), (3633, 5197)]