21000219

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17903}}^1$

素因数の和:17946

約数の個数: 16

約数和(自身を含む): 30938112

約数和(自身を除く): 9937893

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 17903, 53709, 304351, 411769, 913053, 1235307, 7000073, 21000219]

約数ペア:

[(1, 21000219), (3, 7000073), (17, 1235307), (23, 913053), (51, 411769), (69, 304351), (391, 53709), (1173, 17903)]