21139899

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{751}}^1\times {\mathrm{853}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 30825984

約数和(自身を除く): 9686085

約数列:

[1, 3, 11, 33, 751, 853, 2253, 2559, 8261, 9383, 24783, 28149, 640603, 1921809, 7046633, 21139899]

約数ペア:

[(1, 21139899), (3, 7046633), (11, 1921809), (33, 640603), (751, 28149), (853, 24783), (2253, 9383), (2559, 8261)]