18591996

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 44884224

約数和(自身を除く): 26292228

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 137, 172, 258, 263, 274, 411, 516, 526, 548, 789, 822, 1052, 1578, 1644, 3156, 5891, 11309, 11782, 17673, 22618, 23564, 33927, 35346, 36031, 45236, 67854, 70692, 72062, 108093, 135708, 144124, 216186, 432372, 1549333, 3098666, 4647999, 6197332, 9295998, 18591996]

約数ペア:

[(1, 18591996), (2, 9295998), (3, 6197332), (4, 4647999), (6, 3098666), (12, 1549333), (43, 432372), (86, 216186), (129, 144124), (137, 135708), (172, 108093), (258, 72062), (263, 70692), (274, 67854), (411, 45236), (516, 36031), (526, 35346), (548, 33927), (789, 23564), (822, 22618), (1052, 17673), (1578, 11782), (1644, 11309), (3156, 5891)]