138905199

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{16979}}^1$

素因数の和:17092

約数の個数: 20

約数和(自身を含む): 209567160

約数和(自身を除く): 70661961

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2727, 8181, 16979, 50937, 152811, 458433, 1375299, 1714879, 5144637, 15433911, 46301733, 138905199]

約数ペア:

[(1, 138905199), (3, 46301733), (9, 15433911), (27, 5144637), (81, 1714879), (101, 1375299), (303, 458433), (909, 152811), (2727, 50937), (8181, 16979)]