21505988904

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:1047

約数の個数: 128

約数和(自身を含む): 55641600000

約数和(自身を除く): 34135611096

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 149, 188, 199, 282, 298, 376, 398, 447, 564, 596, 597, 643, 796, 894, 1128, 1192, 1194, 1286, 1592, 1788, 1929, 2388, 2572, 3576, 3858, 4776, 5144, 7003, 7716, 9353, 14006, 15432, 18706, 21009, 28012, 28059, 29651, 30221, 37412, 42018, 56024, 56118, 59302, 60442, 74824, 84036, 88953, 90663, 95807, 112236, 118604, 120884, 127957, 168072, 177906, 181326, 191614, 224472, 237208, 241768, 255914, 287421, 355812, 362652, 383228, 383871, 511828, 574842, 711624, 725304, 766456, 767742, 1023656, 1149684, 1393597, 1535484, 2299368, 2787194, 3070968, 4180791, 4502929, 5574388, 6013979, 8361582, 9005858, 11148776, 12027958, 13508787, 16723164, 18011716, 18041937, 19065593, 24055916, 27017574, 33446328, 36023432, 36083874, 38131186, 48111832, 54035148, 57196779, 72167748, 76262372, 108070296, 114393558, 144335496, 152524744, 228787116, 457574232, 896082871, 1792165742, 2688248613, 3584331484, 5376497226, 7168662968, 10752994452, 21505988904]

約数ペア:

[(1, 21505988904), (2, 10752994452), (3, 7168662968), (4, 5376497226), (6, 3584331484), (8, 2688248613), (12, 1792165742), (24, 896082871), (47, 457574232), (94, 228787116), (141, 152524744), (149, 144335496), (188, 114393558), (199, 108070296), (282, 76262372), (298, 72167748), (376, 57196779), (398, 54035148), (447, 48111832), (564, 38131186), (596, 36083874), (597, 36023432), (643, 33446328), (796, 27017574), (894, 24055916), (1128, 19065593), (1192, 18041937), (1194, 18011716), (1286, 16723164), (1592, 13508787), (1788, 12027958), (1929, 11148776), (2388, 9005858), (2572, 8361582), (3576, 6013979), (3858, 5574388), (4776, 4502929), (5144, 4180791), (7003, 3070968), (7716, 2787194), (9353, 2299368), (14006, 1535484), (15432, 1393597), (18706, 1149684), (21009, 1023656), (28012, 767742), (28059, 766456), (29651, 725304), (30221, 711624), (37412, 574842), (42018, 511828), (56024, 383871), (56118, 383228), (59302, 362652), (60442, 355812), (74824, 287421), (84036, 255914), (88953, 241768), (90663, 237208), (95807, 224472), (112236, 191614), (118604, 181326), (120884, 177906), (127957, 168072)]