21124900

素因数分解:

$2^2\times 5^2\times {\mathrm{151}}^1\times {\mathrm{1399}}^1$

素因数の和:1564

約数の個数: 36

約数和(自身を含む): 46177600

約数和(自身を除く): 25052700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 151, 302, 604, 755, 1399, 1510, 2798, 3020, 3775, 5596, 6995, 7550, 13990, 15100, 27980, 34975, 69950, 139900, 211249, 422498, 844996, 1056245, 2112490, 4224980, 5281225, 10562450, 21124900]

約数ペア:

[(1, 21124900), (2, 10562450), (4, 5281225), (5, 4224980), (10, 2112490), (20, 1056245), (25, 844996), (50, 422498), (100, 211249), (151, 139900), (302, 69950), (604, 34975), (755, 27980), (1399, 15100), (1510, 13990), (2798, 7550), (3020, 6995), (3775, 5596)]