21500856

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 192

約数和(自身を含む): 70272000

約数和(自身を除く): 48771144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 19, 24, 26, 27, 31, 36, 38, 39, 52, 54, 57, 62, 72, 76, 78, 93, 104, 108, 114, 117, 124, 152, 156, 169, 171, 186, 216, 228, 234, 247, 248, 279, 312, 338, 342, 351, 372, 403, 456, 468, 494, 507, 513, 558, 589, 676, 684, 702, 741, 744, 806, 837, 936, 988, 1014, 1026, 1116, 1178, 1209, 1352, 1368, 1404, 1482, 1521, 1612, 1674, 1767, 1976, 2028, 2052, 2223, 2232, 2356, 2418, 2808, 2964, 3042, 3211, 3224, 3348, 3534, 3627, 4056, 4104, 4446, 4563, 4712, 4836, 5239, 5301, 5928, 6084, 6422, 6669, 6696, 7068, 7254, 7657, 8892, 9126, 9633, 9672, 10478, 10602, 10881, 12168, 12844, 13338, 14136, 14508, 15314, 15717, 15903, 17784, 18252, 19266, 20956, 21204, 21762, 22971, 25688, 26676, 28899, 29016, 30628, 31434, 31806, 36504, 38532, 41912, 42408, 43524, 45942, 47151, 53352, 57798, 61256, 62868, 63612, 68913, 77064, 86697, 87048, 91884, 94302, 99541, 115596, 125736, 127224, 137826, 141453, 173394, 183768, 188604, 199082, 206739, 231192, 275652, 282906, 298623, 346788, 377208, 398164, 413478, 551304, 565812, 597246, 693576, 796328, 826956, 895869, 1131624, 1194492, 1653912, 1791738, 2388984, 2687607, 3583476, 5375214, 7166952, 10750428, 21500856]

約数ペア:

[(1, 21500856), (2, 10750428), (3, 7166952), (4, 5375214), (6, 3583476), (8, 2687607), (9, 2388984), (12, 1791738), (13, 1653912), (18, 1194492), (19, 1131624), (24, 895869), (26, 826956), (27, 796328), (31, 693576), (36, 597246), (38, 565812), (39, 551304), (52, 413478), (54, 398164), (57, 377208), (62, 346788), (72, 298623), (76, 282906), (78, 275652), (93, 231192), (104, 206739), (108, 199082), (114, 188604), (117, 183768), (124, 173394), (152, 141453), (156, 137826), (169, 127224), (171, 125736), (186, 115596), (216, 99541), (228, 94302), (234, 91884), (247, 87048), (248, 86697), (279, 77064), (312, 68913), (338, 63612), (342, 62868), (351, 61256), (372, 57798), (403, 53352), (456, 47151), (468, 45942), (494, 43524), (507, 42408), (513, 41912), (558, 38532), (589, 36504), (676, 31806), (684, 31434), (702, 30628), (741, 29016), (744, 28899), (806, 26676), (837, 25688), (936, 22971), (988, 21762), (1014, 21204), (1026, 20956), (1116, 19266), (1178, 18252), (1209, 17784), (1352, 15903), (1368, 15717), (1404, 15314), (1482, 14508), (1521, 14136), (1612, 13338), (1674, 12844), (1767, 12168), (1976, 10881), (2028, 10602), (2052, 10478), (2223, 9672), (2232, 9633), (2356, 9126), (2418, 8892), (2808, 7657), (2964, 7254), (3042, 7068), (3211, 6696), (3224, 6669), (3348, 6422), (3534, 6084), (3627, 5928), (4056, 5301), (4104, 5239), (4446, 4836), (4563, 4712)]