21922948

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 39517632

約数和(自身を除く): 17594684

約数列:

[1, 2, 4, 43, 86, 172, 197, 394, 647, 788, 1294, 2588, 8471, 16942, 27821, 33884, 55642, 111284, 127459, 254918, 509836, 5480737, 10961474, 21922948]

約数ペア:

[(1, 21922948), (2, 10961474), (4, 5480737), (43, 509836), (86, 254918), (172, 127459), (197, 111284), (394, 55642), (647, 33884), (788, 27821), (1294, 16942), (2588, 8471)]