20664418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{2543}}^1$

素因数の和:2801

約数の個数: 16

約数和(自身を含む): 32970240

約数和(自身を除く): 12305822

約数列:

[1, 2, 17, 34, 239, 478, 2543, 4063, 5086, 8126, 43231, 86462, 607777, 1215554, 10332209, 20664418]

約数ペア:

[(1, 20664418), (2, 10332209), (17, 1215554), (34, 607777), (239, 86462), (478, 43231), (2543, 8126), (4063, 5086)]