13399978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20743}}^1$

素因数の和:20781

約数の個数: 16

約数和(自身を含む): 22403520

約数和(自身を除く): 9003542

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 20743, 41486, 352631, 394117, 705262, 788234, 6699989, 13399978]

約数ペア:

[(1, 13399978), (2, 6699989), (17, 788234), (19, 705262), (34, 394117), (38, 352631), (323, 41486), (646, 20743)]