247942386

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{320339}}^1$

素因数の和:320390

約数の個数: 24

約数和(自身を含む): 549703440

約数和(自身を除く): 301761054

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 320339, 640678, 961017, 1922034, 2883051, 5766102, 13774577, 27549154, 41323731, 82647462, 123971193, 247942386]

約数ペア:

[(1, 247942386), (2, 123971193), (3, 82647462), (6, 41323731), (9, 27549154), (18, 13774577), (43, 5766102), (86, 2883051), (129, 1922034), (258, 961017), (387, 640678), (774, 320339)]