19688937

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1667}}^1$

素因数の和:1828

約数の個数: 16

約数和(自身を含む): 27328512

約数和(自身を除く): 7639575

約数列:

[1, 3, 31, 93, 127, 381, 1667, 3937, 5001, 11811, 51677, 155031, 211709, 635127, 6562979, 19688937]

約数ペア:

[(1, 19688937), (3, 6562979), (31, 635127), (93, 211709), (127, 155031), (381, 51677), (1667, 11811), (3937, 5001)]