19983132

素因数分解:

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

素因数の和:400

約数の個数: 96

約数和(自身を含む): 57263360

約数和(自身を除く): 37280228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 43, 52, 54, 78, 86, 108, 117, 129, 156, 172, 234, 258, 331, 351, 387, 468, 516, 559, 662, 702, 774, 993, 1118, 1161, 1324, 1404, 1548, 1677, 1986, 2236, 2322, 2979, 3354, 3972, 4303, 4644, 5031, 5958, 6708, 8606, 8937, 10062, 11916, 12909, 14233, 15093, 17212, 17874, 20124, 25818, 28466, 30186, 35748, 38727, 42699, 51636, 56932, 60372, 77454, 85398, 116181, 128097, 154908, 170796, 185029, 232362, 256194, 370058, 384291, 464724, 512388, 555087, 740116, 768582, 1110174, 1537164, 1665261, 2220348, 3330522, 4995783, 6661044, 9991566, 19983132]

約数ペア:

[(1, 19983132), (2, 9991566), (3, 6661044), (4, 4995783), (6, 3330522), (9, 2220348), (12, 1665261), (13, 1537164), (18, 1110174), (26, 768582), (27, 740116), (36, 555087), (39, 512388), (43, 464724), (52, 384291), (54, 370058), (78, 256194), (86, 232362), (108, 185029), (117, 170796), (129, 154908), (156, 128097), (172, 116181), (234, 85398), (258, 77454), (331, 60372), (351, 56932), (387, 51636), (468, 42699), (516, 38727), (559, 35748), (662, 30186), (702, 28466), (774, 25818), (993, 20124), (1118, 17874), (1161, 17212), (1324, 15093), (1404, 14233), (1548, 12909), (1677, 11916), (1986, 10062), (2236, 8937), (2322, 8606), (2979, 6708), (3354, 5958), (3972, 5031), (4303, 4644)]