21064605

素因数分解:

$3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{5827}}^1$

素因数の和:6076

約数の個数: 16

約数和(自身を含む): 33849024

約数和(自身を除く): 12784419

約数列:

[1, 3, 5, 15, 241, 723, 1205, 3615, 5827, 17481, 29135, 87405, 1404307, 4212921, 7021535, 21064605]

約数ペア:

[(1, 21064605), (3, 7021535), (5, 4212921), (15, 1404307), (241, 87405), (723, 29135), (1205, 17481), (3615, 5827)]