138995997

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{11969}}^1$

素因数の和:12065

約数の個数: 24

約数和(自身を含む): 218332800

約数和(自身を除く): 79336803

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 3871, 11613, 11969, 35907, 83783, 251349, 586481, 945551, 1759443, 2836653, 6618857, 19856571, 46331999, 138995997]

約数ペア:

[(1, 138995997), (3, 46331999), (7, 19856571), (21, 6618857), (49, 2836653), (79, 1759443), (147, 945551), (237, 586481), (553, 251349), (1659, 83783), (3871, 35907), (11613, 11969)]