18877221

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4057}}^1$

素因数の和:4121

約数の個数: 24

約数和(自身を含む): 30386304

約数和(自身を除く): 11509083

約数列:

[1, 3, 9, 11, 33, 47, 99, 141, 423, 517, 1551, 4057, 4653, 12171, 36513, 44627, 133881, 190679, 401643, 572037, 1716111, 2097469, 6292407, 18877221]

約数ペア:

[(1, 18877221), (3, 6292407), (9, 2097469), (11, 1716111), (33, 572037), (47, 401643), (99, 190679), (141, 133881), (423, 44627), (517, 36513), (1551, 12171), (4057, 4653)]