21736792

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^2$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 52459380

約数和(自身を除く): 30722588

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 71, 77, 88, 98, 142, 154, 196, 284, 308, 392, 497, 539, 568, 616, 781, 994, 1078, 1562, 1988, 2156, 3124, 3479, 3976, 4312, 5041, 5467, 6248, 6958, 10082, 10934, 13916, 20164, 21868, 27832, 35287, 38269, 40328, 43736, 55451, 70574, 76538, 110902, 141148, 153076, 221804, 247009, 282296, 306152, 388157, 443608, 494018, 776314, 988036, 1552628, 1976072, 2717099, 3105256, 5434198, 10868396, 21736792]

約数ペア:

[(1, 21736792), (2, 10868396), (4, 5434198), (7, 3105256), (8, 2717099), (11, 1976072), (14, 1552628), (22, 988036), (28, 776314), (44, 494018), (49, 443608), (56, 388157), (71, 306152), (77, 282296), (88, 247009), (98, 221804), (142, 153076), (154, 141148), (196, 110902), (284, 76538), (308, 70574), (392, 55451), (497, 43736), (539, 40328), (568, 38269), (616, 35287), (781, 27832), (994, 21868), (1078, 20164), (1562, 13916), (1988, 10934), (2156, 10082), (3124, 6958), (3479, 6248), (3976, 5467), (4312, 5041)]