19998722

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{2063}}^1$

素因数の和:2233

約数の個数: 16

約数和(自身を含む): 31059072

約数和(自身を除く): 11060350

約数列:

[1, 2, 37, 74, 131, 262, 2063, 4126, 4847, 9694, 76331, 152662, 270253, 540506, 9999361, 19998722]

約数ペア:

[(1, 19998722), (2, 9999361), (37, 540506), (74, 270253), (131, 152662), (262, 76331), (2063, 9694), (4126, 4847)]