18691976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{823}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 37376640

約数和(自身を除く): 18684664

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 167, 334, 668, 823, 1336, 1646, 2839, 3292, 5678, 6584, 11356, 13991, 22712, 27982, 55964, 111928, 137441, 274882, 549764, 1099528, 2336497, 4672994, 9345988, 18691976]

約数ペア:

[(1, 18691976), (2, 9345988), (4, 4672994), (8, 2336497), (17, 1099528), (34, 549764), (68, 274882), (136, 137441), (167, 111928), (334, 55964), (668, 27982), (823, 22712), (1336, 13991), (1646, 11356), (2839, 6584), (3292, 5678)]