18444447

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2137}}^1$

素因数の和:2287

約数の個数: 24

約数和(自身を含む): 30684576

約数和(自身を除く): 12240129

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2137, 2877, 6411, 8631, 14959, 19233, 44877, 134631, 292769, 878307, 2049383, 2634921, 6148149, 18444447]

約数ペア:

[(1, 18444447), (3, 6148149), (7, 2634921), (9, 2049383), (21, 878307), (63, 292769), (137, 134631), (411, 44877), (959, 19233), (1233, 14959), (2137, 8631), (2877, 6411)]