19265421

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{39887}}^1$

素因数の和:39920

約数の個数: 16

約数和(自身を含む): 30633984

約数和(自身を除く): 11368563

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 39887, 119661, 279209, 837627, 917401, 2752203, 6421807, 19265421]

約数ペア:

[(1, 19265421), (3, 6421807), (7, 2752203), (21, 917401), (23, 837627), (69, 279209), (161, 119661), (483, 39887)]