28513884

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:775

約数の個数: 72

約数和(自身を含む): 78599808

約数和(自身を除く): 50085924

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 71, 84, 98, 142, 147, 196, 213, 284, 294, 426, 497, 588, 683, 852, 994, 1366, 1491, 1988, 2049, 2732, 2982, 3479, 4098, 4781, 5964, 6958, 8196, 9562, 10437, 13916, 14343, 19124, 20874, 28686, 33467, 41748, 48493, 57372, 66934, 96986, 100401, 133868, 145479, 193972, 200802, 290958, 339451, 401604, 581916, 678902, 1018353, 1357804, 2036706, 2376157, 4073412, 4752314, 7128471, 9504628, 14256942, 28513884]

約数ペア:

[(1, 28513884), (2, 14256942), (3, 9504628), (4, 7128471), (6, 4752314), (7, 4073412), (12, 2376157), (14, 2036706), (21, 1357804), (28, 1018353), (42, 678902), (49, 581916), (71, 401604), (84, 339451), (98, 290958), (142, 200802), (147, 193972), (196, 145479), (213, 133868), (284, 100401), (294, 96986), (426, 66934), (497, 57372), (588, 48493), (683, 41748), (852, 33467), (994, 28686), (1366, 20874), (1491, 19124), (1988, 14343), (2049, 13916), (2732, 10437), (2982, 9562), (3479, 8196), (4098, 6958), (4781, 5964)]