20681774

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{4019}}^1$

素因数の和:4135

約数の個数: 16

約数和(自身を含む): 32417280

約数和(自身を除く): 11735506

約数列:

[1, 2, 31, 62, 83, 166, 2573, 4019, 5146, 8038, 124589, 249178, 333577, 667154, 10340887, 20681774]

約数ペア:

[(1, 20681774), (2, 10340887), (31, 667154), (62, 333577), (83, 249178), (166, 124589), (2573, 8038), (4019, 5146)]