20880147183

素因数分解:

$3^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{1345457}}^1$

素因数の和:1346206

約数の個数: 16

約数和(自身を含む): 31860445440

約数和(自身を除く): 10980298257

約数列:

[1, 3, 7, 21, 739, 2217, 5173, 15519, 1345457, 4036371, 9418199, 28254597, 994292723, 2982878169, 6960049061, 20880147183]

約数ペア:

[(1, 20880147183), (3, 6960049061), (7, 2982878169), (21, 994292723), (739, 28254597), (2217, 9418199), (5173, 4036371), (15519, 1345457)]