2215839

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:278

約数の個数: 16

約数和(自身を含む): 3055104

約数和(自身を除く): 839265

約数列:

[1, 3, 71, 101, 103, 213, 303, 309, 7171, 7313, 10403, 21513, 21939, 31209, 738613, 2215839]

約数ペア:

[(1, 2215839), (3, 738613), (71, 31209), (101, 21939), (103, 21513), (213, 10403), (303, 7313), (309, 7171)]