18899984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{62171}}^1$

素因数の和:62198

約数の個数: 20

約数和(自身を含む): 38546640

約数和(自身を除く): 19646656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 62171, 124342, 248684, 497368, 994736, 1181249, 2362498, 4724996, 9449992, 18899984]

約数ペア:

[(1, 18899984), (2, 9449992), (4, 4724996), (8, 2362498), (16, 1181249), (19, 994736), (38, 497368), (76, 248684), (152, 124342), (304, 62171)]