21981002

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{1481}}^1$

素因数の和:1705

約数の個数: 16

約数和(自身を含む): 33985224

約数和(自身を除く): 12004222

約数列:

[1, 2, 41, 82, 181, 362, 1481, 2962, 7421, 14842, 60721, 121442, 268061, 536122, 10990501, 21981002]

約数ペア:

[(1, 21981002), (2, 10990501), (41, 536122), (82, 268061), (181, 121442), (362, 60721), (1481, 14842), (2962, 7421)]