20741188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{701}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 39213720

約数和(自身を除く): 18472532

約数列:

[1, 2, 4, 13, 26, 52, 569, 701, 1138, 1402, 2276, 2804, 7397, 9113, 14794, 18226, 29588, 36452, 398869, 797738, 1595476, 5185297, 10370594, 20741188]

約数ペア:

[(1, 20741188), (2, 10370594), (4, 5185297), (13, 1595476), (26, 797738), (52, 398869), (569, 36452), (701, 29588), (1138, 18226), (1402, 14794), (2276, 9113), (2804, 7397)]