21985852

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2477}}^1$

素因数の和:2805

約数の個数: 24

約数和(自身を含む): 44128224

約数和(自身を除く): 22142372

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 2477, 4438, 4954, 8876, 9908, 17339, 34678, 69356, 785209, 1570418, 3140836, 5496463, 10992926, 21985852]

約数ペア:

[(1, 21985852), (2, 10992926), (4, 5496463), (7, 3140836), (14, 1570418), (28, 785209), (317, 69356), (634, 34678), (1268, 17339), (2219, 9908), (2477, 8876), (4438, 4954)]