81420573

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{20269}}^1$

素因数の和:20388

約数の個数: 16

約数和(自身を含む): 118052480

約数和(自身を除く): 36631907

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 20269, 60807, 263497, 790491, 2087707, 6263121, 27140191, 81420573]

約数ペア:

[(1, 81420573), (3, 27140191), (13, 6263121), (39, 2087707), (103, 790491), (309, 263497), (1339, 60807), (4017, 20269)]