21432971

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{773}}^1$

素因数の和:1030

約数の個数: 16

約数和(自身を含む): 26080704

約数和(自身を除く): 4647733

約数列:

[1, 7, 17, 119, 233, 773, 1631, 3961, 5411, 13141, 27727, 91987, 180109, 1260763, 3061853, 21432971]

約数ペア:

[(1, 21432971), (7, 3061853), (17, 1260763), (119, 180109), (233, 91987), (773, 27727), (1631, 13141), (3961, 5411)]