20506986

素因数分解:

$2^1\times 3^3\times {\mathrm{307}}^1\times {\mathrm{1237}}^1$

素因数の和:1555

約数の個数: 32

約数和(自身を含む): 45756480

約数和(自身を除く): 25249494

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 307, 614, 921, 1237, 1842, 2474, 2763, 3711, 5526, 7422, 8289, 11133, 16578, 22266, 33399, 66798, 379759, 759518, 1139277, 2278554, 3417831, 6835662, 10253493, 20506986]

約数ペア:

[(1, 20506986), (2, 10253493), (3, 6835662), (6, 3417831), (9, 2278554), (18, 1139277), (27, 759518), (54, 379759), (307, 66798), (614, 33399), (921, 22266), (1237, 16578), (1842, 11133), (2474, 8289), (2763, 7422), (3711, 5526)]