20219991211

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{625367}}^1$

素因数の和:625554

約数の個数: 16

約数和(自身を含む): 24014131200

約数和(自身を除く): 3794139989

約数列:

[1, 7, 31, 149, 217, 1043, 4619, 32333, 625367, 4377569, 19386377, 93179683, 135704639, 652257781, 2888570173, 20219991211]

約数ペア:

[(1, 20219991211), (7, 2888570173), (31, 652257781), (149, 135704639), (217, 93179683), (1043, 19386377), (4619, 4377569), (32333, 625367)]