20358861

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{1423}}^1$

素因数の和:1696

約数の個数: 16

約数和(自身を含む): 28707840

約数和(自身を除く): 8348979

約数列:

[1, 3, 19, 57, 251, 753, 1423, 4269, 4769, 14307, 27037, 81111, 357173, 1071519, 6786287, 20358861]

約数ペア:

[(1, 20358861), (3, 6786287), (19, 1071519), (57, 357173), (251, 81111), (753, 27037), (1423, 14307), (4269, 4769)]