17871021

素因数分解:

$3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{857}}^1$

素因数の和:1201

約数の個数: 24

約数和(自身を含む): 29625024

約数和(自身を除く): 11754003

約数列:

[1, 3, 7, 9, 21, 63, 331, 857, 993, 2317, 2571, 2979, 5999, 6951, 7713, 17997, 20853, 53991, 283667, 851001, 1985669, 2553003, 5957007, 17871021]

約数ペア:

[(1, 17871021), (3, 5957007), (7, 2553003), (9, 1985669), (21, 851001), (63, 283667), (331, 53991), (857, 20853), (993, 17997), (2317, 7713), (2571, 6951), (2979, 5999)]