21231218

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{773}}^1$

素因数の和:1249

約数の個数: 16

約数和(自身を含む): 32990976

約数和(自身を除く): 11759758

約数列:

[1, 2, 31, 62, 443, 773, 886, 1546, 13733, 23963, 27466, 47926, 342439, 684878, 10615609, 21231218]

約数ペア:

[(1, 21231218), (2, 10615609), (31, 684878), (62, 342439), (443, 47926), (773, 27466), (886, 23963), (1546, 13733)]