18312987

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7207}}^1$

素因数の和:7239

約数の個数: 24

約数和(自身を含む): 30677248

約数和(自身を除く): 12364261

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7207, 21621, 50449, 79277, 151347, 237831, 554939, 872047, 1664817, 2616141, 6104329, 18312987]

約数ペア:

[(1, 18312987), (3, 6104329), (7, 2616141), (11, 1664817), (21, 872047), (33, 554939), (77, 237831), (121, 151347), (231, 79277), (363, 50449), (847, 21621), (2541, 7207)]