20431294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25349}}^1$

素因数の和:25395

約数の個数: 16

約数和(自身を含む): 34070400

約数和(自身を除く): 13639106

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 25349, 50698, 329537, 659074, 785819, 1571638, 10215647, 20431294]

約数ペア:

[(1, 20431294), (2, 10215647), (13, 1571638), (26, 785819), (31, 659074), (62, 329537), (403, 50698), (806, 25349)]