21719391

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{811}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 29621760

約数和(自身を除く): 7902369

約数列:

[1, 3, 79, 113, 237, 339, 811, 2433, 8927, 26781, 64069, 91643, 192207, 274929, 7239797, 21719391]

約数ペア:

[(1, 21719391), (3, 7239797), (79, 274929), (113, 192207), (237, 91643), (339, 64069), (811, 26781), (2433, 8927)]