21255070

素因数分解:

$2^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{4651}}^1$

素因数の和:5115

約数の個数: 16

約数和(自身を含む): 38351088

約数和(自身を除く): 17096018

約数列:

[1, 2, 5, 10, 457, 914, 2285, 4570, 4651, 9302, 23255, 46510, 2125507, 4251014, 10627535, 21255070]

約数ペア:

[(1, 21255070), (2, 10627535), (5, 4251014), (10, 2125507), (457, 46510), (914, 23255), (2285, 9302), (4570, 4651)]