20425419

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1613}}^1$

素因数の和:1696

約数の個数: 32

約数和(自身を含む): 35120640

約数和(自身を除く): 14695221

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1613, 1809, 4221, 4839, 11291, 12663, 14517, 33873, 43551, 101619, 108071, 304857, 324213, 756497, 972639, 2269491, 2917917, 6808473, 20425419]

約数ペア:

[(1, 20425419), (3, 6808473), (7, 2917917), (9, 2269491), (21, 972639), (27, 756497), (63, 324213), (67, 304857), (189, 108071), (201, 101619), (469, 43551), (603, 33873), (1407, 14517), (1613, 12663), (1809, 11291), (4221, 4839)]