20721876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{246689}}^1$

素因数の和:246703

約数の個数: 24

約数和(自身を含む): 55258560

約数和(自身を除く): 34536684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 246689, 493378, 740067, 986756, 1480134, 1726823, 2960268, 3453646, 5180469, 6907292, 10360938, 20721876]

約数ペア:

[(1, 20721876), (2, 10360938), (3, 6907292), (4, 5180469), (6, 3453646), (7, 2960268), (12, 1726823), (14, 1480134), (21, 986756), (28, 740067), (42, 493378), (84, 246689)]