21095007

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{733}}^1$

素因数の和:970

約数の個数: 16

約数和(自身を含む): 28855008

約数和(自身を除く): 7760001

約数列:

[1, 3, 53, 159, 181, 543, 733, 2199, 9593, 28779, 38849, 116547, 132673, 398019, 7031669, 21095007]

約数ペア:

[(1, 21095007), (3, 7031669), (53, 398019), (159, 132673), (181, 116547), (543, 38849), (733, 28779), (2199, 9593)]