20177521

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13043}}^1$

素因数の和:13080

約数の個数: 16

約数和(自身を含む): 26296704

約数和(自身を除く): 6119183

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 13043, 91301, 169559, 221731, 1186913, 1552117, 2882503, 20177521]

約数ペア:

[(1, 20177521), (7, 2882503), (13, 1552117), (17, 1186913), (91, 221731), (119, 169559), (221, 91301), (1547, 13043)]