20539844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4759}}^1$

素因数の和:4859

約数の個数: 24

約数和(自身を含む): 39184320

約数和(自身を除く): 18644476

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 4759, 9518, 19036, 61867, 123734, 247468, 394997, 789994, 1579988, 5134961, 10269922, 20539844]

約数ペア:

[(1, 20539844), (2, 10269922), (4, 5134961), (13, 1579988), (26, 789994), (52, 394997), (83, 247468), (166, 123734), (332, 61867), (1079, 19036), (2158, 9518), (4316, 4759)]