21457736210

素因数分解:

$2^1\times 5^1\times {\mathrm{9811}}^1\times {\mathrm{218711}}^1$

素因数の和:228529

約数の個数: 16

約数和(自身を含む): 38628038592

約数和(自身を除く): 17170302382

約数列:

[1, 2, 5, 10, 9811, 19622, 49055, 98110, 218711, 437422, 1093555, 2187110, 2145773621, 4291547242, 10728868105, 21457736210]

約数ペア:

[(1, 21457736210), (2, 10728868105), (5, 4291547242), (10, 2145773621), (9811, 2187110), (19622, 1093555), (49055, 437422), (98110, 218711)]