261342746

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{278617}}^1$

素因数の和:278693

約数の個数: 16

約数和(自身を含む): 454704576

約数和(自身を除く): 193361830

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 278617, 557234, 1950319, 3900638, 18667339, 37334678, 130671373, 261342746]

約数ペア:

[(1, 261342746), (2, 130671373), (7, 37334678), (14, 18667339), (67, 3900638), (134, 1950319), (469, 557234), (938, 278617)]