20553135

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 33965568

約数和(自身を除く): 13412433

約数列:

[1, 3, 5, 15, 53, 103, 159, 251, 265, 309, 515, 753, 795, 1255, 1545, 3765, 5459, 13303, 16377, 25853, 27295, 39909, 66515, 77559, 81885, 129265, 199545, 387795, 1370209, 4110627, 6851045, 20553135]

約数ペア:

[(1, 20553135), (3, 6851045), (5, 4110627), (15, 1370209), (53, 387795), (103, 199545), (159, 129265), (251, 81885), (265, 77559), (309, 66515), (515, 39909), (753, 27295), (795, 25853), (1255, 16377), (1545, 13303), (3765, 5459)]