20212690

素因数分解:

$2^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{7297}}^1$

素因数の和:7581

約数の個数: 16

約数和(自身を含む): 36519192

約数和(自身を除く): 16306502

約数列:

[1, 2, 5, 10, 277, 554, 1385, 2770, 7297, 14594, 36485, 72970, 2021269, 4042538, 10106345, 20212690]

約数ペア:

[(1, 20212690), (2, 10106345), (5, 4042538), (10, 2021269), (277, 72970), (554, 36485), (1385, 14594), (2770, 7297)]