20961612

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{233}}^1$

素因数の和:277

約数の個数: 144

約数和(自身を含む): 67223520

約数和(自身を除く): 46261908

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 42, 49, 51, 54, 63, 68, 84, 98, 102, 108, 119, 126, 147, 153, 189, 196, 204, 233, 238, 252, 294, 306, 357, 378, 441, 459, 466, 476, 588, 612, 699, 714, 756, 833, 882, 918, 932, 1071, 1323, 1398, 1428, 1631, 1666, 1764, 1836, 2097, 2142, 2499, 2646, 2796, 3213, 3262, 3332, 3961, 4194, 4284, 4893, 4998, 5292, 6291, 6426, 6524, 7497, 7922, 8388, 9786, 9996, 11417, 11883, 12582, 12852, 14679, 14994, 15844, 19572, 22491, 22834, 23766, 25164, 27727, 29358, 29988, 34251, 35649, 44037, 44982, 45668, 47532, 55454, 58716, 68502, 71298, 83181, 88074, 89964, 102753, 106947, 110908, 137004, 142596, 166362, 176148, 194089, 205506, 213894, 249543, 308259, 332724, 388178, 411012, 427788, 499086, 582267, 616518, 748629, 776356, 998172, 1164534, 1233036, 1497258, 1746801, 2329068, 2994516, 3493602, 5240403, 6987204, 10480806, 20961612]

約数ペア:

[(1, 20961612), (2, 10480806), (3, 6987204), (4, 5240403), (6, 3493602), (7, 2994516), (9, 2329068), (12, 1746801), (14, 1497258), (17, 1233036), (18, 1164534), (21, 998172), (27, 776356), (28, 748629), (34, 616518), (36, 582267), (42, 499086), (49, 427788), (51, 411012), (54, 388178), (63, 332724), (68, 308259), (84, 249543), (98, 213894), (102, 205506), (108, 194089), (119, 176148), (126, 166362), (147, 142596), (153, 137004), (189, 110908), (196, 106947), (204, 102753), (233, 89964), (238, 88074), (252, 83181), (294, 71298), (306, 68502), (357, 58716), (378, 55454), (441, 47532), (459, 45668), (466, 44982), (476, 44037), (588, 35649), (612, 34251), (699, 29988), (714, 29358), (756, 27727), (833, 25164), (882, 23766), (918, 22834), (932, 22491), (1071, 19572), (1323, 15844), (1398, 14994), (1428, 14679), (1631, 12852), (1666, 12582), (1764, 11883), (1836, 11417), (2097, 9996), (2142, 9786), (2499, 8388), (2646, 7922), (2796, 7497), (3213, 6524), (3262, 6426), (3332, 6291), (3961, 5292), (4194, 4998), (4284, 4893)]