20889531

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9397}}^1$

素因数の和:9435

約数の個数: 24

約数和(自身を含む): 34208720

約数和(自身を除く): 13319189

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9397, 28191, 84573, 122161, 178543, 366483, 535629, 1099449, 1606887, 2321059, 6963177, 20889531]

約数ペア:

[(1, 20889531), (3, 6963177), (9, 2321059), (13, 1606887), (19, 1099449), (39, 535629), (57, 366483), (117, 178543), (171, 122161), (247, 84573), (741, 28191), (2223, 9397)]