21320769

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{479}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 29329920

約数和(自身を除く): 8009151

約数列:

[1, 3, 37, 111, 401, 479, 1203, 1437, 14837, 17723, 44511, 53169, 192079, 576237, 7106923, 21320769]

約数ペア:

[(1, 21320769), (3, 7106923), (37, 576237), (111, 192079), (401, 53169), (479, 44511), (1203, 17723), (1437, 14837)]