81130707

素因数分解:

$3^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2179}}^1$

素因数の和:2392

約数の個数: 32

約数和(自身を含む): 138124800

約数和(自身を除く): 56994093

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 197, 591, 1379, 1773, 2179, 4137, 5319, 6537, 12411, 15253, 19611, 37233, 45759, 58833, 137277, 411831, 429263, 1287789, 3004841, 3863367, 9014523, 11590101, 27043569, 81130707]

約数ペア:

[(1, 81130707), (3, 27043569), (7, 11590101), (9, 9014523), (21, 3863367), (27, 3004841), (63, 1287789), (189, 429263), (197, 411831), (591, 137277), (1379, 58833), (1773, 45759), (2179, 37233), (4137, 19611), (5319, 15253), (6537, 12411)]