21059031

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27103}}^1$

素因数の和:27150

約数の個数: 16

約数和(自身を含む): 32958464

約数和(自身を除く): 11899433

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27103, 81309, 189721, 569163, 1002811, 3008433, 7019677, 21059031]

約数ペア:

[(1, 21059031), (3, 7019677), (7, 3008433), (21, 1002811), (37, 569163), (111, 189721), (259, 81309), (777, 27103)]