21175737

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{14923}}^1$

素因数の和:14980

約数の個数: 16

約数和(自身を含む): 31519488

約数和(自身を除く): 10343751

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 14923, 44769, 164153, 492459, 641689, 1925067, 7058579, 21175737]

約数ペア:

[(1, 21175737), (3, 7058579), (11, 1925067), (33, 641689), (43, 492459), (129, 164153), (473, 44769), (1419, 14923)]