261384387

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{416881}}^1$

素因数の和:416914

約数の個数: 16

約数和(自身を含む): 400206720

約数和(自身を除く): 138822333

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 416881, 1250643, 4585691, 7920739, 13757073, 23762217, 87128129, 261384387]

約数ペア:

[(1, 261384387), (3, 87128129), (11, 23762217), (19, 13757073), (33, 7920739), (57, 4585691), (209, 1250643), (627, 416881)]