20905626

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1217}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 47940480

約数和(自身を除く): 27034854

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 409, 818, 1217, 1227, 2434, 2454, 2863, 3651, 5726, 7302, 8519, 8589, 17038, 17178, 25557, 51114, 497753, 995506, 1493259, 2986518, 3484271, 6968542, 10452813, 20905626]

約数ペア:

[(1, 20905626), (2, 10452813), (3, 6968542), (6, 3484271), (7, 2986518), (14, 1493259), (21, 995506), (42, 497753), (409, 51114), (818, 25557), (1217, 17178), (1227, 17038), (2434, 8589), (2454, 8519), (2863, 7302), (3651, 5726)]