21237117

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33871}}^1$

素因数の和:33904

約数の個数: 16

約数和(自身を含む): 32517120

約数和(自身を除く): 11280003

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33871, 101613, 372581, 643549, 1117743, 1930647, 7079039, 21237117]

約数ペア:

[(1, 21237117), (3, 7079039), (11, 1930647), (19, 1117743), (33, 643549), (57, 372581), (209, 101613), (627, 33871)]