18407336

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 16973464

約数列:

[1, 2, 4, 8, 89, 103, 178, 206, 251, 356, 412, 502, 712, 824, 1004, 2008, 9167, 18334, 22339, 25853, 36668, 44678, 51706, 73336, 89356, 103412, 178712, 206824, 2300917, 4601834, 9203668, 18407336]

約数ペア:

[(1, 18407336), (2, 9203668), (4, 4601834), (8, 2300917), (89, 206824), (103, 178712), (178, 103412), (206, 89356), (251, 73336), (356, 51706), (412, 44678), (502, 36668), (712, 25853), (824, 22339), (1004, 18334), (2008, 9167)]