20877831

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2203}}^1$

素因数の和:2234

約数の個数: 28

約数和(自身を含む): 33725608

約数和(自身を除く): 12847777

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2203, 3159, 6609, 9477, 19827, 28639, 59481, 85917, 178443, 257751, 535329, 773253, 1605987, 2319759, 6959277, 20877831]

約数ペア:

[(1, 20877831), (3, 6959277), (9, 2319759), (13, 1605987), (27, 773253), (39, 535329), (81, 257751), (117, 178443), (243, 85917), (351, 59481), (729, 28639), (1053, 19827), (2203, 9477), (3159, 6609)]