21903045

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{27551}}^1$

素因数の和:27612

約数の個数: 16

約数和(自身を含む): 35707392

約数和(自身を除く): 13804347

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 27551, 82653, 137755, 413265, 1460203, 4380609, 7301015, 21903045]

約数ペア:

[(1, 21903045), (3, 7301015), (5, 4380609), (15, 1460203), (53, 413265), (159, 137755), (265, 82653), (795, 27551)]