20117956

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{271}}^1\times {\mathrm{277}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 35993216

約数和(自身を除く): 15875260

約数列:

[1, 2, 4, 67, 134, 268, 271, 277, 542, 554, 1084, 1108, 18157, 18559, 36314, 37118, 72628, 74236, 75067, 150134, 300268, 5029489, 10058978, 20117956]

約数ペア:

[(1, 20117956), (2, 10058978), (4, 5029489), (67, 300268), (134, 150134), (268, 75067), (271, 74236), (277, 72628), (542, 37118), (554, 36314), (1084, 18559), (1108, 18157)]