19901535

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 33226752

約数和(自身を除く): 13325217

約数列:

[1, 3, 5, 15, 31, 93, 127, 155, 337, 381, 465, 635, 1011, 1685, 1905, 3937, 5055, 10447, 11811, 19685, 31341, 42799, 52235, 59055, 128397, 156705, 213995, 641985, 1326769, 3980307, 6633845, 19901535]

約数ペア:

[(1, 19901535), (3, 6633845), (5, 3980307), (15, 1326769), (31, 641985), (93, 213995), (127, 156705), (155, 128397), (337, 59055), (381, 52235), (465, 42799), (635, 31341), (1011, 19685), (1685, 11811), (1905, 10447), (3937, 5055)]