278080533

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{33331}}^1$

素因数の和:33446

約数の個数: 20

約数和(自身を含む): 419449888

約数和(自身を除く): 141369355

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 8343, 33331, 99993, 299979, 899937, 2699811, 3433093, 10299279, 30897837, 92693511, 278080533]

約数ペア:

[(1, 278080533), (3, 92693511), (9, 30897837), (27, 10299279), (81, 3433093), (103, 2699811), (309, 899937), (927, 299979), (2781, 99993), (8343, 33331)]