16988587

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 22325760

約数和(自身を除く): 5337173

約数列:

[1, 7, 11, 37, 67, 77, 89, 259, 407, 469, 623, 737, 979, 2479, 2849, 3293, 5159, 5963, 6853, 17353, 23051, 27269, 36223, 41741, 65593, 190883, 220631, 253561, 459151, 1544417, 2426941, 16988587]

約数ペア:

[(1, 16988587), (7, 2426941), (11, 1544417), (37, 459151), (67, 253561), (77, 220631), (89, 190883), (259, 65593), (407, 41741), (469, 36223), (623, 27269), (737, 23051), (979, 17353), (2479, 6853), (2849, 5963), (3293, 5159)]