19513390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{409}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 38021760

約数和(自身を除く): 18508370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 367, 409, 734, 818, 1835, 2045, 3670, 4090, 4771, 5317, 9542, 10634, 23855, 26585, 47710, 53170, 150103, 300206, 750515, 1501030, 1951339, 3902678, 9756695, 19513390]

約数ペア:

[(1, 19513390), (2, 9756695), (5, 3902678), (10, 1951339), (13, 1501030), (26, 750515), (65, 300206), (130, 150103), (367, 53170), (409, 47710), (734, 26585), (818, 23855), (1835, 10634), (2045, 9542), (3670, 5317), (4090, 4771)]