20557822

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1013}}^1$

素因数の和:1227

約数の個数: 16

約数和(自身を含む): 31515120

約数和(自身を除く): 10957298

約数列:

[1, 2, 73, 139, 146, 278, 1013, 2026, 10147, 20294, 73949, 140807, 147898, 281614, 10278911, 20557822]

約数ペア:

[(1, 20557822), (2, 10278911), (73, 281614), (139, 147898), (146, 140807), (278, 73949), (1013, 20294), (2026, 10147)]