81857013

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{66067}}^1$

素因数の和:66136

約数の個数: 16

約数和(自身を含む): 126850560

約数和(自身を除く): 44993547

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 66067, 198201, 462469, 1387407, 3897953, 11693859, 27285671, 81857013]

約数ペア:

[(1, 81857013), (3, 27285671), (7, 11693859), (21, 3897953), (59, 1387407), (177, 462469), (413, 198201), (1239, 66067)]