19697447

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{521}}^1$

素因数の和:1030

約数の個数: 16

約数和(自身を含む): 24655104

約数和(自身を除く): 4957657

約数列:

[1, 7, 11, 77, 491, 521, 3437, 3647, 5401, 5731, 37807, 40117, 255811, 1790677, 2813921, 19697447]

約数ペア:

[(1, 19697447), (7, 2813921), (11, 1790677), (77, 255811), (491, 40117), (521, 37807), (3437, 5731), (3647, 5401)]