21566824

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 46080000

約数和(自身を除く): 24513176

約数列:

[1, 2, 4, 8, 19, 23, 31, 38, 46, 62, 76, 92, 124, 152, 184, 199, 248, 398, 437, 589, 713, 796, 874, 1178, 1426, 1592, 1748, 2356, 2852, 3496, 3781, 4577, 4712, 5704, 6169, 7562, 9154, 12338, 13547, 15124, 18308, 24676, 27094, 30248, 36616, 49352, 54188, 86963, 108376, 117211, 141887, 173926, 234422, 283774, 347852, 468844, 567548, 695704, 937688, 1135096, 2695853, 5391706, 10783412, 21566824]

約数ペア:

[(1, 21566824), (2, 10783412), (4, 5391706), (8, 2695853), (19, 1135096), (23, 937688), (31, 695704), (38, 567548), (46, 468844), (62, 347852), (76, 283774), (92, 234422), (124, 173926), (152, 141887), (184, 117211), (199, 108376), (248, 86963), (398, 54188), (437, 49352), (589, 36616), (713, 30248), (796, 27094), (874, 24676), (1178, 18308), (1426, 15124), (1592, 13547), (1748, 12338), (2356, 9154), (2852, 7562), (3496, 6169), (3781, 5704), (4577, 4712)]