19749897

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{467}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 29592576

約数和(自身を除く): 9842679

約数列:

[1, 3, 9, 37, 111, 127, 333, 381, 467, 1143, 1401, 4203, 4699, 14097, 17279, 42291, 51837, 59309, 155511, 177927, 533781, 2194433, 6583299, 19749897]

約数ペア:

[(1, 19749897), (3, 6583299), (9, 2194433), (37, 533781), (111, 177927), (127, 155511), (333, 59309), (381, 51837), (467, 42291), (1143, 17279), (1401, 14097), (4203, 4699)]