20278413

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:969

約数の個数: 24

約数和(自身を含む): 30499040

約数和(自身を除く): 10220627

約数列:

[1, 3, 9, 43, 61, 129, 183, 387, 549, 859, 2577, 2623, 7731, 7869, 23607, 36937, 52399, 110811, 157197, 332433, 471591, 2253157, 6759471, 20278413]

約数ペア:

[(1, 20278413), (3, 6759471), (9, 2253157), (43, 471591), (61, 332433), (129, 157197), (183, 110811), (387, 52399), (549, 36937), (859, 23607), (2577, 7869), (2623, 7731)]