21084867

素因数分解:

$3^7\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 32747520

約数和(自身を除く): 11662653

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 311, 729, 837, 933, 2187, 2511, 2799, 7533, 8397, 9641, 22599, 25191, 28923, 67797, 75573, 86769, 226719, 260307, 680157, 780921, 2342763, 7028289, 21084867]

約数ペア:

[(1, 21084867), (3, 7028289), (9, 2342763), (27, 780921), (31, 680157), (81, 260307), (93, 226719), (243, 86769), (279, 75573), (311, 67797), (729, 28923), (837, 25191), (933, 22599), (2187, 9641), (2511, 8397), (2799, 7533)]