19665035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 26756352

約数和(自身を除く): 7091317

約数列:

[1, 5, 13, 41, 47, 65, 157, 205, 235, 533, 611, 785, 1927, 2041, 2665, 3055, 6437, 7379, 9635, 10205, 25051, 32185, 36895, 83681, 95927, 125255, 302539, 418405, 479635, 1512695, 3933007, 19665035]

約数ペア:

[(1, 19665035), (5, 3933007), (13, 1512695), (41, 479635), (47, 418405), (65, 302539), (157, 125255), (205, 95927), (235, 83681), (533, 36895), (611, 32185), (785, 25051), (1927, 10205), (2041, 9635), (2665, 7379), (3055, 6437)]