19722129

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2179}}^1$

素因数の和:2620

約数の個数: 16

約数和(自身を含む): 30136320

約数和(自身を除く): 10414191

約数列:

[1, 3, 7, 21, 431, 1293, 2179, 3017, 6537, 9051, 15253, 45759, 939149, 2817447, 6574043, 19722129]

約数ペア:

[(1, 19722129), (3, 6574043), (7, 2817447), (21, 939149), (431, 45759), (1293, 15253), (2179, 9051), (3017, 6537)]