20704838

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4337}}^1$

素因数の和:4388

約数の個数: 32

約数和(自身を含む): 39979008

約数和(自身を除く): 19274170

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 154, 217, 341, 434, 682, 2387, 4337, 4774, 8674, 30359, 47707, 60718, 95414, 134447, 268894, 333949, 667898, 941129, 1478917, 1882258, 2957834, 10352419, 20704838]

約数ペア:

[(1, 20704838), (2, 10352419), (7, 2957834), (11, 1882258), (14, 1478917), (22, 941129), (31, 667898), (62, 333949), (77, 268894), (154, 134447), (217, 95414), (341, 60718), (434, 47707), (682, 30359), (2387, 8674), (4337, 4774)]