261809577

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{11927}}^1$

素因数の和:12210

約数の個数: 20

約数和(自身を含む): 392574336

約数和(自身を除く): 130764759

約数列:

[1, 3, 9, 27, 81, 271, 813, 2439, 7317, 11927, 21951, 35781, 107343, 322029, 966087, 3232217, 9696651, 29089953, 87269859, 261809577]

約数ペア:

[(1, 261809577), (3, 87269859), (9, 29089953), (27, 9696651), (81, 3232217), (271, 966087), (813, 322029), (2439, 107343), (7317, 35781), (11927, 21951)]