18403312

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1163}}^1$

素因数の和:1237

約数の個数: 40

約数和(自身を含む): 38104704

約数和(自身を除く): 19701392

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1163, 1978, 2326, 3956, 4652, 7912, 9304, 15824, 18608, 26749, 50009, 53498, 100018, 106996, 200036, 213992, 400072, 427984, 800144, 1150207, 2300414, 4600828, 9201656, 18403312]

約数ペア:

[(1, 18403312), (2, 9201656), (4, 4600828), (8, 2300414), (16, 1150207), (23, 800144), (43, 427984), (46, 400072), (86, 213992), (92, 200036), (172, 106996), (184, 100018), (344, 53498), (368, 50009), (688, 26749), (989, 18608), (1163, 15824), (1978, 9304), (2326, 7912), (3956, 4652)]