19641085

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 24319872

約数和(自身を除く): 4678787

約数列:

[1, 5, 61, 71, 305, 355, 907, 4331, 4535, 21655, 55327, 64397, 276635, 321985, 3928217, 19641085]

約数ペア:

[(1, 19641085), (5, 3928217), (61, 321985), (71, 276635), (305, 64397), (355, 55327), (907, 21655), (4331, 4535)]