20728554

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{44867}}^1$

素因数の和:44890

約数の個数: 32

約数和(自身を含む): 51687936

約数和(自身を除く): 30959382

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 462, 44867, 89734, 134601, 269202, 314069, 493537, 628138, 942207, 987074, 1480611, 1884414, 2961222, 3454759, 6909518, 10364277, 20728554]

約数ペア:

[(1, 20728554), (2, 10364277), (3, 6909518), (6, 3454759), (7, 2961222), (11, 1884414), (14, 1480611), (21, 987074), (22, 942207), (33, 628138), (42, 493537), (66, 314069), (77, 269202), (154, 134601), (231, 89734), (462, 44867)]