21870177

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61261}}^1$

素因数の和:61288

約数の個数: 16

約数和(自身を含む): 35286912

約数和(自身を除く): 13416735

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 61261, 183783, 428827, 1041437, 1286481, 3124311, 7290059, 21870177]

約数ペア:

[(1, 21870177), (3, 7290059), (7, 3124311), (17, 1286481), (21, 1041437), (51, 428827), (119, 183783), (357, 61261)]