18884019

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81749}}^1$

素因数の和:81770

約数の個数: 16

約数和(自身を含む): 31392000

約数和(自身を除く): 12507981

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81749, 245247, 572243, 899239, 1716729, 2697717, 6294673, 18884019]

約数ペア:

[(1, 18884019), (3, 6294673), (7, 2697717), (11, 1716729), (21, 899239), (33, 572243), (77, 245247), (231, 81749)]