19211109

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 28200960

約数和(自身を除く): 8989851

約数列:

[1, 3, 19, 47, 57, 71, 101, 141, 213, 303, 893, 1349, 1919, 2679, 3337, 4047, 4747, 5757, 7171, 10011, 14241, 21513, 63403, 90193, 136249, 190209, 270579, 337037, 408747, 1011111, 6403703, 19211109]

約数ペア:

[(1, 19211109), (3, 6403703), (19, 1011111), (47, 408747), (57, 337037), (71, 270579), (101, 190209), (141, 136249), (213, 90193), (303, 63403), (893, 21513), (1349, 14241), (1919, 10011), (2679, 7171), (3337, 5757), (4047, 4747)]