421016020

素因数分解:

$2^2\times 5^1\times {\mathrm{21050801}}^1$

素因数の和:21050810

約数の個数: 12

約数和(自身を含む): 884133684

約数和(自身を除く): 463117664

約数列:

[1, 2, 4, 5, 10, 20, 21050801, 42101602, 84203204, 105254005, 210508010, 421016020]

約数ペア:

[(1, 421016020), (2, 210508010), (4, 105254005), (5, 84203204), (10, 42101602), (20, 21050801)]