21679077

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27901}}^1$

素因数の和:27948

約数の個数: 16

約数和(自身を含む): 33928832

約数和(自身を除く): 12249755

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27901, 83703, 195307, 585921, 1032337, 3097011, 7226359, 21679077]

約数ペア:

[(1, 21679077), (3, 7226359), (7, 3097011), (21, 1032337), (37, 585921), (111, 195307), (259, 83703), (777, 27901)]