21118276

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{433}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 37731960

約数和(自身を除く): 16613684

約数列:

[1, 2, 4, 89, 137, 178, 274, 356, 433, 548, 866, 1732, 12193, 24386, 38537, 48772, 59321, 77074, 118642, 154148, 237284, 5279569, 10559138, 21118276]

約数ペア:

[(1, 21118276), (2, 10559138), (4, 5279569), (89, 237284), (137, 154148), (178, 118642), (274, 77074), (356, 59321), (433, 48772), (548, 38537), (866, 24386), (1732, 12193)]