123020721

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 206807040

約数和(自身を除く): 83786319

約数列:

[1, 3, 9, 17, 23, 27, 43, 51, 69, 129, 153, 207, 271, 387, 391, 459, 621, 731, 813, 989, 1161, 1173, 2193, 2439, 2967, 3519, 4607, 6233, 6579, 7317, 8901, 10557, 11653, 13821, 16813, 18699, 19737, 26703, 34959, 41463, 50439, 56097, 104877, 105961, 124389, 151317, 168291, 198101, 268019, 314631, 317883, 453951, 594303, 804057, 953649, 1782909, 2412171, 2860947, 4556323, 5348727, 7236513, 13668969, 41006907, 123020721]

約数ペア:

[(1, 123020721), (3, 41006907), (9, 13668969), (17, 7236513), (23, 5348727), (27, 4556323), (43, 2860947), (51, 2412171), (69, 1782909), (129, 953649), (153, 804057), (207, 594303), (271, 453951), (387, 317883), (391, 314631), (459, 268019), (621, 198101), (731, 168291), (813, 151317), (989, 124389), (1161, 105961), (1173, 104877), (2193, 56097), (2439, 50439), (2967, 41463), (3519, 34959), (4607, 26703), (6233, 19737), (6579, 18699), (7317, 16813), (8901, 13821), (10557, 11653)]