19694969

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{821}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 23673600

約数和(自身を除く): 3978631

約数列:

[1, 7, 23, 149, 161, 821, 1043, 3427, 5747, 18883, 23989, 122329, 132181, 856303, 2813567, 19694969]

約数ペア:

[(1, 19694969), (7, 2813567), (23, 856303), (149, 132181), (161, 122329), (821, 23989), (1043, 18883), (3427, 5747)]