18781646

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{181}}^1\times {\mathrm{307}}^1$

素因数の和:516

約数の個数: 24

約数和(自身を含む): 30774744

約数和(自身を除く): 11993098

約数列:

[1, 2, 13, 26, 169, 181, 307, 338, 362, 614, 2353, 3991, 4706, 7982, 30589, 51883, 55567, 61178, 103766, 111134, 722371, 1444742, 9390823, 18781646]

約数ペア:

[(1, 18781646), (2, 9390823), (13, 1444742), (26, 722371), (169, 111134), (181, 103766), (307, 61178), (338, 55567), (362, 51883), (614, 30589), (2353, 7982), (3991, 4706)]