21208970

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{137}}^2$

素因数の和:394

約数の個数: 24

約数和(自身を含む): 38797164

約数和(自身を除く): 17588194

約数列:

[1, 2, 5, 10, 113, 137, 226, 274, 565, 685, 1130, 1370, 15481, 18769, 30962, 37538, 77405, 93845, 154810, 187690, 2120897, 4241794, 10604485, 21208970]

約数ペア:

[(1, 21208970), (2, 10604485), (5, 4241794), (10, 2120897), (113, 187690), (137, 154810), (226, 93845), (274, 77405), (565, 37538), (685, 30962), (1130, 18769), (1370, 15481)]