208570901

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{1021}}^1$

素因数の和:1425

約数の個数: 24

約数和(自身を含む): 265638240

約数和(自身を除く): 57067339

約数列:

[1, 7, 11, 49, 77, 379, 539, 1021, 2653, 4169, 7147, 11231, 18571, 29183, 50029, 78617, 204281, 386959, 550319, 2708713, 4256549, 18960991, 29795843, 208570901]

約数ペア:

[(1, 208570901), (7, 29795843), (11, 18960991), (49, 4256549), (77, 2708713), (379, 550319), (539, 386959), (1021, 204281), (2653, 78617), (4169, 50029), (7147, 29183), (11231, 18571)]