21471410

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{27179}}^1$

素因数の和:27265

約数の個数: 16

約数和(自身を含む): 39139200

約数和(自身を除く): 17667790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 27179, 54358, 135895, 271790, 2147141, 4294282, 10735705, 21471410]

約数ペア:

[(1, 21471410), (2, 10735705), (5, 4294282), (10, 2147141), (79, 271790), (158, 135895), (395, 54358), (790, 27179)]