21382610

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49727}}^1$

素因数の和:49777

約数の個数: 16

約数和(自身を含む): 39384576

約数和(自身を除く): 18001966

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 49727, 99454, 248635, 497270, 2138261, 4276522, 10691305, 21382610]

約数ペア:

[(1, 21382610), (2, 10691305), (5, 4276522), (10, 2138261), (43, 497270), (86, 248635), (215, 99454), (430, 49727)]