18990872

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{57899}}^1$

素因数の和:57946

約数の個数: 16

約数和(自身を含む): 36477000

約数和(自身を除く): 17486128

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 57899, 115798, 231596, 463192, 2373859, 4747718, 9495436, 18990872]

約数ペア:

[(1, 18990872), (2, 9495436), (4, 4747718), (8, 2373859), (41, 463192), (82, 231596), (164, 115798), (328, 57899)]