21708428

素因数分解:

$2^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2477}}^1$

素因数の和:2801

約数の個数: 24

約数和(自身を含む): 43573152

約数和(自身を除く): 21864724

約数列:

[1, 2, 4, 7, 14, 28, 313, 626, 1252, 2191, 2477, 4382, 4954, 8764, 9908, 17339, 34678, 69356, 775301, 1550602, 3101204, 5427107, 10854214, 21708428]

約数ペア:

[(1, 21708428), (2, 10854214), (4, 5427107), (7, 3101204), (14, 1550602), (28, 775301), (313, 69356), (626, 34678), (1252, 17339), (2191, 9908), (2477, 8764), (4382, 4954)]