20491149

素因数分解:

$3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{4261}}^1$

素因数の和:4500

約数の個数: 16

約数和(自身を含む): 31368320

約数和(自身を除く): 10877171

約数列:

[1, 3, 7, 21, 229, 687, 1603, 4261, 4809, 12783, 29827, 89481, 975769, 2927307, 6830383, 20491149]

約数ペア:

[(1, 20491149), (3, 6830383), (7, 2927307), (21, 975769), (229, 89481), (687, 29827), (1603, 12783), (4261, 4809)]