20920047

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2753}}^1$

素因数の和:2922

約数の個数: 16

約数和(自身を含む): 29743200

約数和(自身を除く): 8823153

約数列:

[1, 3, 17, 51, 149, 447, 2533, 2753, 7599, 8259, 46801, 140403, 410197, 1230591, 6973349, 20920047]

約数ペア:

[(1, 20920047), (3, 6973349), (17, 1230591), (51, 410197), (149, 140403), (447, 46801), (2533, 8259), (2753, 7599)]