19908792

素因数分解:

$2^3\times 3^2\times {\mathrm{113}}^1\times {\mathrm{2447}}^1$

素因数の和:2572

約数の個数: 48

約数和(自身を含む): 54419040

約数和(自身を除く): 34510248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 113, 226, 339, 452, 678, 904, 1017, 1356, 2034, 2447, 2712, 4068, 4894, 7341, 8136, 9788, 14682, 19576, 22023, 29364, 44046, 58728, 88092, 176184, 276511, 553022, 829533, 1106044, 1659066, 2212088, 2488599, 3318132, 4977198, 6636264, 9954396, 19908792]

約数ペア:

[(1, 19908792), (2, 9954396), (3, 6636264), (4, 4977198), (6, 3318132), (8, 2488599), (9, 2212088), (12, 1659066), (18, 1106044), (24, 829533), (36, 553022), (72, 276511), (113, 176184), (226, 88092), (339, 58728), (452, 44046), (678, 29364), (904, 22023), (1017, 19576), (1356, 14682), (2034, 9788), (2447, 8136), (2712, 7341), (4068, 4894)]