19979934

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8263}}^1$

素因数の和:8312

約数の個数: 32

約数和(自身を含む): 44427264

約数和(自身を除く): 24447330

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8263, 16526, 24789, 49578, 107419, 214838, 256153, 322257, 512306, 644514, 768459, 1536918, 3329989, 6659978, 9989967, 19979934]

約数ペア:

[(1, 19979934), (2, 9989967), (3, 6659978), (6, 3329989), (13, 1536918), (26, 768459), (31, 644514), (39, 512306), (62, 322257), (78, 256153), (93, 214838), (186, 107419), (403, 49578), (806, 24789), (1209, 16526), (2418, 8263)]