21287112

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11519}}^1$

素因数の和:11546

約数の個数: 64

約数和(自身を含む): 66355200

約数和(自身を除く): 45068088

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 84, 88, 132, 154, 168, 231, 264, 308, 462, 616, 924, 1848, 11519, 23038, 34557, 46076, 69114, 80633, 92152, 126709, 138228, 161266, 241899, 253418, 276456, 322532, 380127, 483798, 506836, 645064, 760254, 886963, 967596, 1013672, 1520508, 1773926, 1935192, 2660889, 3041016, 3547852, 5321778, 7095704, 10643556, 21287112]

約数ペア:

[(1, 21287112), (2, 10643556), (3, 7095704), (4, 5321778), (6, 3547852), (7, 3041016), (8, 2660889), (11, 1935192), (12, 1773926), (14, 1520508), (21, 1013672), (22, 967596), (24, 886963), (28, 760254), (33, 645064), (42, 506836), (44, 483798), (56, 380127), (66, 322532), (77, 276456), (84, 253418), (88, 241899), (132, 161266), (154, 138228), (168, 126709), (231, 92152), (264, 80633), (308, 69114), (462, 46076), (616, 34557), (924, 23038), (1848, 11519)]