21834309

素因数分解:

$3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1607}}^1$

素因数の和:2264

約数の個数: 16

約数和(自身を含む): 33343488

約数和(自身を除く): 11509179

約数列:

[1, 3, 7, 21, 647, 1607, 1941, 4529, 4821, 11249, 13587, 33747, 1039729, 3119187, 7278103, 21834309]

約数ペア:

[(1, 21834309), (3, 7278103), (7, 3119187), (21, 1039729), (647, 33747), (1607, 13587), (1941, 11249), (4529, 4821)]