1551180729

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3887671}}^1$

素因数の和:3887700

約数の個数: 16

約数和(自身を含む): 2488110080

約数和(自身を除く): 936929351

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 3887671, 11663013, 27213697, 73865749, 81641091, 221597247, 517060243, 1551180729]

約数ペア:

[(1, 1551180729), (3, 517060243), (7, 221597247), (19, 81641091), (21, 73865749), (57, 27213697), (133, 11663013), (399, 3887671)]