21313206

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 80

約数和(自身を含む): 51749280

約数和(自身を除く): 30436074

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 71, 81, 102, 109, 142, 153, 162, 213, 218, 306, 327, 426, 459, 639, 654, 918, 981, 1207, 1278, 1377, 1853, 1917, 1962, 2414, 2754, 2943, 3621, 3706, 3834, 5559, 5751, 5886, 7242, 7739, 8829, 10863, 11118, 11502, 15478, 16677, 17658, 21726, 23217, 32589, 33354, 46434, 50031, 65178, 69651, 97767, 100062, 131563, 139302, 150093, 195534, 208953, 263126, 300186, 394689, 417906, 626859, 789378, 1184067, 1253718, 2368134, 3552201, 7104402, 10656603, 21313206]

約数ペア:

[(1, 21313206), (2, 10656603), (3, 7104402), (6, 3552201), (9, 2368134), (17, 1253718), (18, 1184067), (27, 789378), (34, 626859), (51, 417906), (54, 394689), (71, 300186), (81, 263126), (102, 208953), (109, 195534), (142, 150093), (153, 139302), (162, 131563), (213, 100062), (218, 97767), (306, 69651), (327, 65178), (426, 50031), (459, 46434), (639, 33354), (654, 32589), (918, 23217), (981, 21726), (1207, 17658), (1278, 16677), (1377, 15478), (1853, 11502), (1917, 11118), (1962, 10863), (2414, 8829), (2754, 7739), (2943, 7242), (3621, 5886), (3706, 5751), (3834, 5559)]