21138466

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1\times {\mathrm{929}}^1$

素因数の和:1329

約数の個数: 16

約数和(自身を含む): 32855040

約数和(自身を除く): 11716574

約数列:

[1, 2, 31, 62, 367, 734, 929, 1858, 11377, 22754, 28799, 57598, 340943, 681886, 10569233, 21138466]

約数ペア:

[(1, 21138466), (2, 10569233), (31, 681886), (62, 340943), (367, 57598), (734, 28799), (929, 22754), (1858, 11377)]