21001716

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13567}}^1$

素因数の和:13620

約数の個数: 36

約数和(自身を含む): 54326272

約数和(自身を除く): 33324556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13567, 27134, 40701, 54268, 81402, 122103, 162804, 244206, 488412, 583381, 1166762, 1750143, 2333524, 3500286, 5250429, 7000572, 10500858, 21001716]

約数ペア:

[(1, 21001716), (2, 10500858), (3, 7000572), (4, 5250429), (6, 3500286), (9, 2333524), (12, 1750143), (18, 1166762), (36, 583381), (43, 488412), (86, 244206), (129, 162804), (172, 122103), (258, 81402), (387, 54268), (516, 40701), (774, 27134), (1548, 13567)]