28245267

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18353}}^1$

素因数の和:18384

約数の個数: 20

約数和(自身を含む): 44416680

約数和(自身を除く): 16171413

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18353, 55059, 165177, 348707, 495531, 1046121, 1486593, 3138363, 9415089, 28245267]

約数ペア:

[(1, 28245267), (3, 9415089), (9, 3138363), (19, 1486593), (27, 1046121), (57, 495531), (81, 348707), (171, 165177), (513, 55059), (1539, 18353)]