388978863

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1424831}}^1$

素因数の和:1424854

約数の個数: 16

約数和(自身を含む): 638324736

約数和(自身を除く): 249345873

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 1424831, 4274493, 9973817, 18522803, 29921451, 55568409, 129659621, 388978863]

約数ペア:

[(1, 388978863), (3, 129659621), (7, 55568409), (13, 29921451), (21, 18522803), (39, 9973817), (91, 4274493), (273, 1424831)]