21491650

素因数分解:

$2^1\times 5^2\times {\mathrm{229}}^1\times {\mathrm{1877}}^1$

素因数の和:2118

約数の個数: 24

約数和(自身を含む): 40170420

約数和(自身を除く): 18678770

約数列:

[1, 2, 5, 10, 25, 50, 229, 458, 1145, 1877, 2290, 3754, 5725, 9385, 11450, 18770, 46925, 93850, 429833, 859666, 2149165, 4298330, 10745825, 21491650]

約数ペア:

[(1, 21491650), (2, 10745825), (5, 4298330), (10, 2149165), (25, 859666), (50, 429833), (229, 93850), (458, 46925), (1145, 18770), (1877, 11450), (2290, 9385), (3754, 5725)]