20996205

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{37831}}^1$

素因数の和:37876

約数の個数: 16

約数和(自身を含む): 34502784

約数和(自身を除く): 13506579

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 37831, 113493, 189155, 567465, 1399747, 4199241, 6998735, 20996205]

約数ペア:

[(1, 20996205), (3, 6998735), (5, 4199241), (15, 1399747), (37, 567465), (111, 189155), (185, 113493), (555, 37831)]