20421734

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1\times {\mathrm{593}}^1$

素因数の和:919

約数の個数: 16

約数和(自身を含む): 31263408

約数和(自身を除く): 10841674

約数列:

[1, 2, 67, 134, 257, 514, 593, 1186, 17219, 34438, 39731, 79462, 152401, 304802, 10210867, 20421734]

約数ペア:

[(1, 20421734), (2, 10210867), (67, 304802), (134, 152401), (257, 79462), (514, 39731), (593, 34438), (1186, 17219)]