20180839

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1117}}^1$

素因数の和:1242

約数の個数: 16

約数和(自身を含む): 24148800

約数和(自身を除く): 3967961

約数列:

[1, 7, 29, 89, 203, 623, 1117, 2581, 7819, 18067, 32393, 99413, 226751, 695891, 2882977, 20180839]

約数ペア:

[(1, 20180839), (7, 2882977), (29, 695891), (89, 226751), (203, 99413), (623, 32393), (1117, 18067), (2581, 7819)]