19794186

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{9907}}^1$

素因数の和:9955

約数の個数: 32

約数和(自身を含む): 45180480

約数和(自身を除く): 25386294

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 9907, 19814, 29721, 59442, 89163, 178326, 267489, 366559, 534978, 733118, 1099677, 2199354, 3299031, 6598062, 9897093, 19794186]

約数ペア:

[(1, 19794186), (2, 9897093), (3, 6598062), (6, 3299031), (9, 2199354), (18, 1099677), (27, 733118), (37, 534978), (54, 366559), (74, 267489), (111, 178326), (222, 89163), (333, 59442), (666, 29721), (999, 19814), (1998, 9907)]