21985647

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{443}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 29922048

約数和(自身を除く): 7936401

約数列:

[1, 3, 71, 213, 233, 443, 699, 1329, 16543, 31453, 49629, 94359, 103219, 309657, 7328549, 21985647]

約数ペア:

[(1, 21985647), (3, 7328549), (71, 309657), (213, 103219), (233, 94359), (443, 49629), (699, 31453), (1329, 16543)]