21275492

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6971}}^1$

素因数の和:7091

約数の個数: 24

約数和(自身を含む): 42947520

約数和(自身を除く): 21672028

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6971, 13942, 27884, 48797, 97594, 195188, 759839, 1519678, 3039356, 5318873, 10637746, 21275492]

約数ペア:

[(1, 21275492), (2, 10637746), (4, 5318873), (7, 3039356), (14, 1519678), (28, 759839), (109, 195188), (218, 97594), (436, 48797), (763, 27884), (1526, 13942), (3052, 6971)]