18943561

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2339}}^1$

素因数の和:2448

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 4643639

約数列:

[1, 7, 13, 89, 91, 623, 1157, 2339, 8099, 16373, 30407, 208171, 212849, 1457197, 2706223, 18943561]

約数ペア:

[(1, 18943561), (7, 2706223), (13, 1457197), (89, 212849), (91, 208171), (623, 30407), (1157, 16373), (2339, 8099)]