20421656892

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{890531}}^1$

素因数の和:890568

約数の個数: 108

約数和(自身を含む): 64668652776

約数和(自身を除く): 44246995884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 49, 52, 63, 78, 84, 91, 98, 117, 126, 147, 156, 182, 196, 234, 252, 273, 294, 364, 441, 468, 546, 588, 637, 819, 882, 1092, 1274, 1638, 1764, 1911, 2548, 3276, 3822, 5733, 7644, 11466, 22932, 890531, 1781062, 2671593, 3562124, 5343186, 6233717, 8014779, 10686372, 11576903, 12467434, 16029558, 18701151, 23153806, 24934868, 32059116, 34730709, 37402302, 43636019, 46307612, 56103453, 69461418, 74804604, 81038321, 87272038, 104192127, 112206906, 130908057, 138922836, 162076642, 174544076, 208384254, 224413812, 243114963, 261816114, 324153284, 392724171, 416768508, 486229926, 523632228, 567268247, 729344889, 785448342, 972459852, 1134536494, 1458689778, 1570896684, 1701804741, 2269072988, 2917379556, 3403609482, 5105414223, 6807218964, 10210828446, 20421656892]

約数ペア:

[(1, 20421656892), (2, 10210828446), (3, 6807218964), (4, 5105414223), (6, 3403609482), (7, 2917379556), (9, 2269072988), (12, 1701804741), (13, 1570896684), (14, 1458689778), (18, 1134536494), (21, 972459852), (26, 785448342), (28, 729344889), (36, 567268247), (39, 523632228), (42, 486229926), (49, 416768508), (52, 392724171), (63, 324153284), (78, 261816114), (84, 243114963), (91, 224413812), (98, 208384254), (117, 174544076), (126, 162076642), (147, 138922836), (156, 130908057), (182, 112206906), (196, 104192127), (234, 87272038), (252, 81038321), (273, 74804604), (294, 69461418), (364, 56103453), (441, 46307612), (468, 43636019), (546, 37402302), (588, 34730709), (637, 32059116), (819, 24934868), (882, 23153806), (1092, 18701151), (1274, 16029558), (1638, 12467434), (1764, 11576903), (1911, 10686372), (2548, 8014779), (3276, 6233717), (3822, 5343186), (5733, 3562124), (7644, 2671593), (11466, 1781062), (22932, 890531)]