857588991

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1\times {\mathrm{1999}}^1$

素因数の和:2699

約数の個数: 32

約数和(自身を含む): 1351680000

約数和(自身を除く): 494091009

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 659, 1977, 1999, 4613, 5997, 13839, 13993, 20429, 41979, 61287, 61969, 143003, 185907, 429009, 433783, 1301349, 1317341, 3952023, 9221387, 27664161, 40837571, 122512713, 285862997, 857588991]

約数ペア:

[(1, 857588991), (3, 285862997), (7, 122512713), (21, 40837571), (31, 27664161), (93, 9221387), (217, 3952023), (651, 1317341), (659, 1301349), (1977, 433783), (1999, 429009), (4613, 185907), (5997, 143003), (13839, 61969), (13993, 61287), (20429, 41979)]