20498913

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{2609}}^1$

素因数の和:2718

約数の個数: 20

約数和(自身を含む): 30949380

約数和(自身を除く): 10450467

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2609, 2619, 7827, 7857, 23481, 70443, 211329, 253073, 759219, 2277657, 6832971, 20498913]

約数ペア:

[(1, 20498913), (3, 6832971), (9, 2277657), (27, 759219), (81, 253073), (97, 211329), (291, 70443), (873, 23481), (2609, 7857), (2619, 7827)]