21555088

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{15137}}^1$

素因数の和:15234

約数の個数: 20

約数和(自身を含む): 42235020

約数和(自身を除く): 20679932

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 15137, 30274, 60548, 121096, 242192, 1347193, 2694386, 5388772, 10777544, 21555088]

約数ペア:

[(1, 21555088), (2, 10777544), (4, 5388772), (8, 2694386), (16, 1347193), (89, 242192), (178, 121096), (356, 60548), (712, 30274), (1424, 15137)]