20983005

素因数分解:

$3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1951}}^1$

素因数の和:2201

約数の個数: 24

約数和(自身を含む): 36541440

約数和(自身を除く): 15558435

約数列:

[1, 3, 5, 9, 15, 45, 239, 717, 1195, 1951, 2151, 3585, 5853, 9755, 10755, 17559, 29265, 87795, 466289, 1398867, 2331445, 4196601, 6994335, 20983005]

約数ペア:

[(1, 20983005), (3, 6994335), (5, 4196601), (9, 2331445), (15, 1398867), (45, 466289), (239, 87795), (717, 29265), (1195, 17559), (1951, 10755), (2151, 9755), (3585, 5853)]