21921279

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{11617}}^1$

素因数の和:11674

約数の個数: 16

約数和(自身を含む): 31786848

約数和(自身を除く): 9865569

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 11617, 34851, 197489, 429829, 592467, 1289487, 7307093, 21921279]

約数ペア:

[(1, 21921279), (3, 7307093), (17, 1289487), (37, 592467), (51, 429829), (111, 197489), (629, 34851), (1887, 11617)]