21641559

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{809}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 29795040

約数和(自身を除く): 8153481

約数列:

[1, 3, 37, 111, 241, 723, 809, 2427, 8917, 26751, 29933, 89799, 194969, 584907, 7213853, 21641559]

約数ペア:

[(1, 21641559), (3, 7213853), (37, 584907), (111, 194969), (241, 89799), (723, 29933), (809, 26751), (2427, 8917)]