21900850

素因数分解:

$2^1\times 5^2\times {\mathrm{438017}}^1$

素因数の和:438029

約数の個数: 12

約数和(自身を含む): 40735674

約数和(自身を除く): 18834824

約数列:

[1, 2, 5, 10, 25, 50, 438017, 876034, 2190085, 4380170, 10950425, 21900850]

約数ペア:

[(1, 21900850), (2, 10950425), (5, 4380170), (10, 2190085), (25, 876034), (50, 438017)]