20956859

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{659}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 27086400

約数和(自身を除く): 6129541

約数列:

[1, 7, 11, 49, 59, 77, 413, 539, 649, 659, 2891, 4543, 4613, 7249, 31801, 32291, 38881, 50743, 272167, 355201, 427691, 1905169, 2993837, 20956859]

約数ペア:

[(1, 20956859), (7, 2993837), (11, 1905169), (49, 427691), (59, 355201), (77, 272167), (413, 50743), (539, 38881), (649, 32291), (659, 31801), (2891, 7249), (4543, 4613)]