21776980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{23167}}^1$

素因数の和:23223

約数の個数: 24

約数和(自身を含む): 46706688

約数和(自身を除く): 24929708

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 23167, 46334, 92668, 115835, 231670, 463340, 1088849, 2177698, 4355396, 5444245, 10888490, 21776980]

約数ペア:

[(1, 21776980), (2, 10888490), (4, 5444245), (5, 4355396), (10, 2177698), (20, 1088849), (47, 463340), (94, 231670), (188, 115835), (235, 92668), (470, 46334), (940, 23167)]