19196991

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{919}}^1$

素因数の和:1147

約数の個数: 24

約数和(自身を含む): 30426240

約数和(自身を除く): 11229249

約数列:

[1, 3, 9, 11, 33, 99, 211, 633, 919, 1899, 2321, 2757, 6963, 8271, 10109, 20889, 30327, 90981, 193909, 581727, 1745181, 2132999, 6398997, 19196991]

約数ペア:

[(1, 19196991), (3, 6398997), (9, 2132999), (11, 1745181), (33, 581727), (99, 193909), (211, 90981), (633, 30327), (919, 20889), (1899, 10109), (2321, 8271), (2757, 6963)]