20806978

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{5881}}^1$

素因数の和:5973

約数の個数: 16

約数和(自身を含む): 32821560

約数和(自身を除く): 12014582

約数列:

[1, 2, 29, 58, 61, 122, 1769, 3538, 5881, 11762, 170549, 341098, 358741, 717482, 10403489, 20806978]

約数ペア:

[(1, 20806978), (2, 10403489), (29, 717482), (58, 358741), (61, 341098), (122, 170549), (1769, 11762), (3538, 5881)]