21250119

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37879}}^1$

素因数の和:37910

約数の個数: 16

約数和(自身を含む): 32728320

約数和(自身を除く): 11478201

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37879, 113637, 416669, 643943, 1250007, 1931829, 7083373, 21250119]

約数ペア:

[(1, 21250119), (3, 7083373), (11, 1931829), (17, 1250007), (33, 643943), (51, 416669), (187, 113637), (561, 37879)]