21426678

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 96

約数和(自身を含む): 58146816

約数和(自身を除く): 36720138

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 103, 117, 126, 127, 182, 206, 234, 254, 273, 309, 381, 546, 618, 721, 762, 819, 889, 927, 1143, 1339, 1442, 1638, 1651, 1778, 1854, 2163, 2286, 2667, 2678, 3302, 4017, 4326, 4953, 5334, 6489, 8001, 8034, 9373, 9906, 11557, 12051, 12978, 13081, 14859, 16002, 18746, 23114, 24102, 26162, 28119, 29718, 34671, 39243, 56238, 69342, 78486, 84357, 91567, 104013, 117729, 168714, 170053, 183134, 208026, 235458, 274701, 340106, 510159, 549402, 824103, 1020318, 1190371, 1530477, 1648206, 2380742, 3060954, 3571113, 7142226, 10713339, 21426678]

約数ペア:

[(1, 21426678), (2, 10713339), (3, 7142226), (6, 3571113), (7, 3060954), (9, 2380742), (13, 1648206), (14, 1530477), (18, 1190371), (21, 1020318), (26, 824103), (39, 549402), (42, 510159), (63, 340106), (78, 274701), (91, 235458), (103, 208026), (117, 183134), (126, 170053), (127, 168714), (182, 117729), (206, 104013), (234, 91567), (254, 84357), (273, 78486), (309, 69342), (381, 56238), (546, 39243), (618, 34671), (721, 29718), (762, 28119), (819, 26162), (889, 24102), (927, 23114), (1143, 18746), (1339, 16002), (1442, 14859), (1638, 13081), (1651, 12978), (1778, 12051), (1854, 11557), (2163, 9906), (2286, 9373), (2667, 8034), (2678, 8001), (3302, 6489), (4017, 5334), (4326, 4953)]