20680037

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2549}}^1$

素因数の和:2636

約数の個数: 16

約数和(自身を含む): 25296000

約数和(自身を除く): 4615963

約数列:

[1, 7, 19, 61, 133, 427, 1159, 2549, 8113, 17843, 48431, 155489, 339017, 1088423, 2954291, 20680037]

約数ペア:

[(1, 20680037), (7, 2954291), (19, 1088423), (61, 339017), (133, 155489), (427, 48431), (1159, 17843), (2549, 8113)]