81809421

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{19661}}^1$

素因数の和:19756

約数の個数: 16

約数和(自身を含む): 116399040

約数和(自身を除く): 34589619

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 19661, 58983, 373559, 1120677, 1435253, 4305759, 27269807, 81809421]

約数ペア:

[(1, 81809421), (3, 27269807), (19, 4305759), (57, 1435253), (73, 1120677), (219, 373559), (1387, 58983), (4161, 19661)]