20698281

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{20719}}^1$

素因数の和:20765

約数の個数: 16

約数和(自身を含む): 31494400

約数和(自身を除く): 10796119

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 20719, 62157, 186471, 559413, 766603, 2299809, 6899427, 20698281]

約数ペア:

[(1, 20698281), (3, 6899427), (9, 2299809), (27, 766603), (37, 559413), (111, 186471), (333, 62157), (999, 20719)]