19987700685

素因数分解:

$3^1\times 5^1\times {\mathrm{322877}}^1\times {\mathrm{4127}}^1$

素因数の和:327012

約数の個数: 16

約数和(自身を含む): 31988169216

約数和(自身を除く): 12000468531

約数列:

[1, 3, 5, 15, 4127, 12381, 20635, 61905, 322877, 968631, 1614385, 4843155, 1332513379, 3997540137, 6662566895, 19987700685]

約数ペア:

[(1, 19987700685), (3, 6662566895), (5, 3997540137), (15, 1332513379), (4127, 4843155), (12381, 1614385), (20635, 968631), (61905, 322877)]