20678301

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2957}}^1$

素因数の和:3010

約数の個数: 32

約数和(自身を含む): 35969280

約数和(自身を除く): 15290979

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 2957, 6993, 8871, 20699, 26613, 62097, 79839, 109409, 186291, 328227, 558873, 765863, 984681, 2297589, 2954043, 6892767, 20678301]

約数ペア:

[(1, 20678301), (3, 6892767), (7, 2954043), (9, 2297589), (21, 984681), (27, 765863), (37, 558873), (63, 328227), (111, 186291), (189, 109409), (259, 79839), (333, 62097), (777, 26613), (999, 20699), (2331, 8871), (2957, 6993)]