397382013

素因数分解:

$3^2\times 7^2\times {\mathrm{901093}}^1$

素因数の和:901113

約数の個数: 18

約数和(自身を含む): 667710654

約数和(自身を除く): 270328641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 901093, 2703279, 6307651, 8109837, 18922953, 44153557, 56768859, 132460671, 397382013]

約数ペア:

[(1, 397382013), (3, 132460671), (7, 56768859), (9, 44153557), (21, 18922953), (49, 8109837), (63, 6307651), (147, 2703279), (441, 901093)]