28090157823

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{7573}}^1$

素因数の和:8253

約数の個数: 72

約数和(自身を含む): 50915094048

約数和(自身を除く): 22824936225

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 647, 819, 1911, 1941, 4529, 5733, 5823, 7573, 8411, 13587, 22719, 25233, 31703, 40761, 53011, 58877, 68157, 75699, 95109, 98449, 159033, 176631, 285327, 295347, 371077, 412139, 477099, 529893, 689143, 886041, 1113231, 1236417, 2067429, 3339693, 3709251, 4824001, 4899731, 6202287, 14472003, 14699193, 34298117, 43416009, 44097579, 63696503, 102894351, 191089509, 240086819, 308683053, 445875521, 573268527, 720260457, 1337626563, 2160781371, 3121128647, 4012879689, 9363385941, 28090157823]

約数ペア:

[(1, 28090157823), (3, 9363385941), (7, 4012879689), (9, 3121128647), (13, 2160781371), (21, 1337626563), (39, 720260457), (49, 573268527), (63, 445875521), (91, 308683053), (117, 240086819), (147, 191089509), (273, 102894351), (441, 63696503), (637, 44097579), (647, 43416009), (819, 34298117), (1911, 14699193), (1941, 14472003), (4529, 6202287), (5733, 4899731), (5823, 4824001), (7573, 3709251), (8411, 3339693), (13587, 2067429), (22719, 1236417), (25233, 1113231), (31703, 886041), (40761, 689143), (53011, 529893), (58877, 477099), (68157, 412139), (75699, 371077), (95109, 295347), (98449, 285327), (159033, 176631)]