261330381

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{248177}}^1$

素因数の和:248202

約数の個数: 20

約数和(自身を含む): 420413532

約数和(自身を除く): 159083151

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 248177, 744531, 2233593, 3226301, 6700779, 9678903, 20102337, 29036709, 87110127, 261330381]

約数ペア:

[(1, 261330381), (3, 87110127), (9, 29036709), (13, 20102337), (27, 9678903), (39, 6700779), (81, 3226301), (117, 2233593), (351, 744531), (1053, 248177)]