30686649

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1999}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 50688000

約数和(自身を除く): 20001351

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1999, 2193, 5117, 5997, 13993, 15351, 33983, 41979, 85957, 101949, 237881, 257871, 601699, 713643, 1461269, 1805097, 4383807, 10228883, 30686649]

約数ペア:

[(1, 30686649), (3, 10228883), (7, 4383807), (17, 1805097), (21, 1461269), (43, 713643), (51, 601699), (119, 257871), (129, 237881), (301, 101949), (357, 85957), (731, 41979), (903, 33983), (1999, 15351), (2193, 13993), (5117, 5997)]