178260021

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{11059}}^1$

素因数の和:11270

約数の個数: 20

約数和(自身を含む): 267652000

約数和(自身を除く): 89391979

約数列:

[1, 3, 9, 27, 81, 199, 597, 1791, 5373, 11059, 16119, 33177, 99531, 298593, 895779, 2200741, 6602223, 19806669, 59420007, 178260021]

約数ペア:

[(1, 178260021), (3, 59420007), (9, 19806669), (27, 6602223), (81, 2200741), (199, 895779), (597, 298593), (1791, 99531), (5373, 33177), (11059, 16119)]