78821421

素因数分解:

$3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{23027}}^1$

素因数の和:23200

約数の個数: 16

約数和(自身を含む): 120850944

約数和(自身を除く): 42029523

約数列:

[1, 3, 7, 21, 163, 489, 1141, 3423, 23027, 69081, 161189, 483567, 3753401, 11260203, 26273807, 78821421]

約数ペア:

[(1, 78821421), (3, 26273807), (7, 11260203), (21, 3753401), (163, 483567), (489, 161189), (1141, 69081), (3423, 23027)]