20123308

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2129}}^1$

素因数の和:2289

約数の個数: 24

約数和(自身を含む): 37573200

約数和(自身を除く): 17449892

約数列:

[1, 2, 4, 17, 34, 68, 139, 278, 556, 2129, 2363, 4258, 4726, 8516, 9452, 36193, 72386, 144772, 295931, 591862, 1183724, 5030827, 10061654, 20123308]

約数ペア:

[(1, 20123308), (2, 10061654), (4, 5030827), (17, 1183724), (34, 591862), (68, 295931), (139, 144772), (278, 72386), (556, 36193), (2129, 9452), (2363, 8516), (4258, 4726)]