21903850

素因数分解:

$2^1\times 5^2\times {\mathrm{229}}^1\times {\mathrm{1913}}^1$

素因数の和:2154

約数の個数: 24

約数和(自身を含む): 40940460

約数和(自身を除く): 19036610

約数列:

[1, 2, 5, 10, 25, 50, 229, 458, 1145, 1913, 2290, 3826, 5725, 9565, 11450, 19130, 47825, 95650, 438077, 876154, 2190385, 4380770, 10951925, 21903850]

約数ペア:

[(1, 21903850), (2, 10951925), (5, 4380770), (10, 2190385), (25, 876154), (50, 438077), (229, 95650), (458, 47825), (1145, 19130), (1913, 11450), (2290, 9565), (3826, 5725)]