21664804

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33641}}^1$

素因数の和:33675

約数の個数: 24

約数和(自身を含む): 45214848

約数和(自身を除く): 23550044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33641, 67282, 134564, 235487, 470974, 773743, 941948, 1547486, 3094972, 5416201, 10832402, 21664804]

約数ペア:

[(1, 21664804), (2, 10832402), (4, 5416201), (7, 3094972), (14, 1547486), (23, 941948), (28, 773743), (46, 470974), (92, 235487), (161, 134564), (322, 67282), (644, 33641)]