9991566

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 24541440

約数和(自身を除く): 14549874

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 78, 86, 117, 129, 234, 258, 331, 351, 387, 559, 662, 702, 774, 993, 1118, 1161, 1677, 1986, 2322, 2979, 3354, 4303, 5031, 5958, 8606, 8937, 10062, 12909, 14233, 15093, 17874, 25818, 28466, 30186, 38727, 42699, 77454, 85398, 116181, 128097, 185029, 232362, 256194, 370058, 384291, 555087, 768582, 1110174, 1665261, 3330522, 4995783, 9991566]

約数ペア:

[(1, 9991566), (2, 4995783), (3, 3330522), (6, 1665261), (9, 1110174), (13, 768582), (18, 555087), (26, 384291), (27, 370058), (39, 256194), (43, 232362), (54, 185029), (78, 128097), (86, 116181), (117, 85398), (129, 77454), (234, 42699), (258, 38727), (331, 30186), (351, 28466), (387, 25818), (559, 17874), (662, 15093), (702, 14233), (774, 12909), (993, 10062), (1118, 8937), (1161, 8606), (1677, 5958), (1986, 5031), (2322, 4303), (2979, 3354)]