21088040990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{34570559}}^1$

素因数の和:34570627

約数の個数: 16

約数和(自身を含む): 38580744960

約数和(自身を除く): 17492703970

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 34570559, 69141118, 172852795, 345705590, 2108804099, 4217608198, 10544020495, 21088040990]

約数ペア:

[(1, 21088040990), (2, 10544020495), (5, 4217608198), (10, 2108804099), (61, 345705590), (122, 172852795), (305, 69141118), (610, 34570559)]