19729089

素因数分解:

$3^4\times {\mathrm{373}}^1\times {\mathrm{653}}^1$

素因数の和:1038

約数の個数: 20

約数和(自身を含む): 29596116

約数和(自身を除く): 9867027

約数列:

[1, 3, 9, 27, 81, 373, 653, 1119, 1959, 3357, 5877, 10071, 17631, 30213, 52893, 243569, 730707, 2192121, 6576363, 19729089]

約数ペア:

[(1, 19729089), (3, 6576363), (9, 2192121), (27, 730707), (81, 243569), (373, 52893), (653, 30213), (1119, 17631), (1959, 10071), (3357, 5877)]