19965533

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:692

約数の個数: 16

約数和(自身を含む): 23631744

約数和(自身を除く): 3666211

約数列:

[1, 7, 37, 157, 259, 491, 1099, 3437, 5809, 18167, 40663, 77087, 127169, 539609, 2852219, 19965533]

約数ペア:

[(1, 19965533), (7, 2852219), (37, 539609), (157, 127169), (259, 77087), (491, 40663), (1099, 18167), (3437, 5809)]