20837804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5981}}^1$

素因数の和:6065

約数の個数: 24

約数和(自身を含む): 39864048

約数和(自身を除く): 19026244

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 5981, 11962, 23924, 77753, 155506, 311012, 400727, 801454, 1602908, 5209451, 10418902, 20837804]

約数ペア:

[(1, 20837804), (2, 10418902), (4, 5209451), (13, 1602908), (26, 801454), (52, 400727), (67, 311012), (134, 155506), (268, 77753), (871, 23924), (1742, 11962), (3484, 5981)]