18508048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{881}}^1$

素因数の和:1003

約数の個数: 40

約数和(自身を含む): 39044376

約数和(自身を除く): 20536328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 101, 104, 202, 208, 404, 808, 881, 1313, 1616, 1762, 2626, 3524, 5252, 7048, 10504, 11453, 14096, 21008, 22906, 45812, 88981, 91624, 177962, 183248, 355924, 711848, 1156753, 1423696, 2313506, 4627012, 9254024, 18508048]

約数ペア:

[(1, 18508048), (2, 9254024), (4, 4627012), (8, 2313506), (13, 1423696), (16, 1156753), (26, 711848), (52, 355924), (101, 183248), (104, 177962), (202, 91624), (208, 88981), (404, 45812), (808, 22906), (881, 21008), (1313, 14096), (1616, 11453), (1762, 10504), (2626, 7048), (3524, 5252)]