21493937

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 23282688

約数和(自身を除く): 1788751

約数列:

[1, 23, 43, 103, 211, 989, 2369, 4429, 4853, 9073, 21733, 101867, 208679, 499859, 934519, 21493937]

約数ペア:

[(1, 21493937), (23, 934519), (43, 499859), (103, 208679), (211, 101867), (989, 21733), (2369, 9073), (4429, 4853)]