21802872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 68544000

約数和(自身を除く): 46741128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 67, 78, 84, 91, 104, 134, 149, 156, 168, 182, 201, 268, 273, 298, 312, 364, 402, 447, 469, 536, 546, 596, 728, 804, 871, 894, 938, 1043, 1092, 1192, 1407, 1608, 1742, 1788, 1876, 1937, 2086, 2184, 2613, 2814, 3129, 3484, 3576, 3752, 3874, 4172, 5226, 5628, 5811, 6097, 6258, 6968, 7748, 8344, 9983, 10452, 11256, 11622, 12194, 12516, 13559, 15496, 18291, 19966, 20904, 23244, 24388, 25032, 27118, 29949, 36582, 39932, 40677, 46488, 48776, 54236, 59898, 69881, 73164, 79864, 81354, 108472, 119796, 129779, 139762, 146328, 162708, 209643, 239592, 259558, 279524, 325416, 389337, 419286, 519116, 559048, 778674, 838572, 908453, 1038232, 1557348, 1677144, 1816906, 2725359, 3114696, 3633812, 5450718, 7267624, 10901436, 21802872]

約数ペア:

[(1, 21802872), (2, 10901436), (3, 7267624), (4, 5450718), (6, 3633812), (7, 3114696), (8, 2725359), (12, 1816906), (13, 1677144), (14, 1557348), (21, 1038232), (24, 908453), (26, 838572), (28, 778674), (39, 559048), (42, 519116), (52, 419286), (56, 389337), (67, 325416), (78, 279524), (84, 259558), (91, 239592), (104, 209643), (134, 162708), (149, 146328), (156, 139762), (168, 129779), (182, 119796), (201, 108472), (268, 81354), (273, 79864), (298, 73164), (312, 69881), (364, 59898), (402, 54236), (447, 48776), (469, 46488), (536, 40677), (546, 39932), (596, 36582), (728, 29949), (804, 27118), (871, 25032), (894, 24388), (938, 23244), (1043, 20904), (1092, 19966), (1192, 18291), (1407, 15496), (1608, 13559), (1742, 12516), (1788, 12194), (1876, 11622), (1937, 11256), (2086, 10452), (2184, 9983), (2613, 8344), (2814, 7748), (3129, 6968), (3484, 6258), (3576, 6097), (3752, 5811), (3874, 5628), (4172, 5226)]