20837628

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:704

約数の個数: 96

約数和(自身を含む): 63275520

約数和(自身を除く): 42437892

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 43, 54, 63, 84, 86, 108, 126, 129, 172, 189, 252, 258, 301, 378, 387, 516, 602, 641, 756, 774, 903, 1161, 1204, 1282, 1548, 1806, 1923, 2322, 2564, 2709, 3612, 3846, 4487, 4644, 5418, 5769, 7692, 8127, 8974, 10836, 11538, 13461, 16254, 17307, 17948, 23076, 26922, 27563, 32508, 34614, 40383, 53844, 55126, 69228, 80766, 82689, 110252, 121149, 161532, 165378, 192941, 242298, 248067, 330756, 385882, 484596, 496134, 578823, 744201, 771764, 992268, 1157646, 1488402, 1736469, 2315292, 2976804, 3472938, 5209407, 6945876, 10418814, 20837628]

約数ペア:

[(1, 20837628), (2, 10418814), (3, 6945876), (4, 5209407), (6, 3472938), (7, 2976804), (9, 2315292), (12, 1736469), (14, 1488402), (18, 1157646), (21, 992268), (27, 771764), (28, 744201), (36, 578823), (42, 496134), (43, 484596), (54, 385882), (63, 330756), (84, 248067), (86, 242298), (108, 192941), (126, 165378), (129, 161532), (172, 121149), (189, 110252), (252, 82689), (258, 80766), (301, 69228), (378, 55126), (387, 53844), (516, 40383), (602, 34614), (641, 32508), (756, 27563), (774, 26922), (903, 23076), (1161, 17948), (1204, 17307), (1282, 16254), (1548, 13461), (1806, 11538), (1923, 10836), (2322, 8974), (2564, 8127), (2709, 7692), (3612, 5769), (3846, 5418), (4487, 4644)]