21381189

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5743}}^1$

素因数の和:5836

約数の個数: 16

約数和(自身を含む): 30604032

約数和(自身を除く): 9222843

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5743, 17229, 97631, 292893, 419239, 1257717, 7127063, 21381189]

約数ペア:

[(1, 21381189), (3, 7127063), (17, 1257717), (51, 419239), (73, 292893), (219, 97631), (1241, 17229), (3723, 5743)]