788970021

素因数分解:

$3^1\times 7^2\times {\mathrm{2099}}^1\times {\mathrm{2557}}^1$

素因数の和:4673

約数の個数: 24

約数和(自身を含む): 1224770400

約数和(自身を除く): 435800379

約数列:

[1, 3, 7, 21, 49, 147, 2099, 2557, 6297, 7671, 14693, 17899, 44079, 53697, 102851, 125293, 308553, 375879, 5367143, 16101429, 37570001, 112710003, 262990007, 788970021]

約数ペア:

[(1, 788970021), (3, 262990007), (7, 112710003), (21, 37570001), (49, 16101429), (147, 5367143), (2099, 375879), (2557, 308553), (6297, 125293), (7671, 102851), (14693, 53697), (17899, 44079)]