21686223

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11831}}^1$

素因数の和:11894

約数の個数: 16

約数和(自身を含む): 31804416

約数和(自身を除く): 10118193

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 11831, 35493, 153803, 461409, 556057, 1668171, 7228741, 21686223]

約数ペア:

[(1, 21686223), (3, 7228741), (13, 1668171), (39, 556057), (47, 461409), (141, 153803), (611, 35493), (1833, 11831)]