20216568715

素因数分解:

$5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{602311}}^1$

素因数の和:602467

約数の個数: 24

約数和(自身を含む): 28426717152

約数和(自身を除く): 8210148437

約数列:

[1, 5, 7, 35, 49, 137, 245, 685, 959, 4795, 6713, 33565, 602311, 3011555, 4216177, 21080885, 29513239, 82516607, 147566195, 412583035, 577616249, 2888081245, 4043313743, 20216568715]

約数ペア:

[(1, 20216568715), (5, 4043313743), (7, 2888081245), (35, 577616249), (49, 412583035), (137, 147566195), (245, 82516607), (685, 29513239), (959, 21080885), (4795, 4216177), (6713, 3011555), (33565, 602311)]