28019502721

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{1340069}}^1$

素因数の和:1340208

約数の個数: 16

約数和(自身を含む): 33448147200

約数和(自身を除く): 5428644479

約数列:

[1, 7, 29, 103, 203, 721, 2987, 20909, 1340069, 9380483, 38862001, 138027107, 272034007, 966189749, 4002786103, 28019502721]

約数ペア:

[(1, 28019502721), (7, 4002786103), (29, 966189749), (103, 272034007), (203, 138027107), (721, 38862001), (2987, 9380483), (20909, 1340069)]