21489139

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2029}}^1$

素因数の和:2142

約数の個数: 16

約数和(自身を含む): 26308800

約数和(自身を除く): 4819661

約数列:

[1, 7, 17, 89, 119, 623, 1513, 2029, 10591, 14203, 34493, 180581, 241451, 1264067, 3069877, 21489139]

約数ペア:

[(1, 21489139), (7, 3069877), (17, 1264067), (89, 241451), (119, 180581), (623, 34493), (1513, 14203), (2029, 10591)]