19329919

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 3479681

約数列:

[1, 7, 43, 149, 301, 431, 1043, 3017, 6407, 18533, 44849, 64219, 129731, 449533, 2761417, 19329919]

約数ペア:

[(1, 19329919), (7, 2761417), (43, 449533), (149, 129731), (301, 64219), (431, 44849), (1043, 18533), (3017, 6407)]