18987866

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1\times {\mathrm{739}}^1$

素因数の和:1213

約数の個数: 16

約数和(自身を含む): 29570400

約数和(自身を除く): 10582534

約数列:

[1, 2, 29, 58, 443, 739, 886, 1478, 12847, 21431, 25694, 42862, 327377, 654754, 9493933, 18987866]

約数ペア:

[(1, 18987866), (2, 9493933), (29, 654754), (58, 327377), (443, 42862), (739, 25694), (886, 21431), (1478, 12847)]