20615877

素因数分解:

$3^5\times {\mathrm{43}}^1\times {\mathrm{1973}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 31615584

約数和(自身を除く): 10999707

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 1161, 1973, 3483, 5919, 10449, 17757, 53271, 84839, 159813, 254517, 479439, 763551, 2290653, 6871959, 20615877]

約数ペア:

[(1, 20615877), (3, 6871959), (9, 2290653), (27, 763551), (43, 479439), (81, 254517), (129, 159813), (243, 84839), (387, 53271), (1161, 17757), (1973, 10449), (3483, 5919)]