19010728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{619}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 39060000

約数和(自身を除く): 20049272

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 349, 619, 698, 1238, 1396, 2476, 2792, 3839, 4952, 6809, 7678, 13618, 15356, 27236, 30712, 54472, 216031, 432062, 864124, 1728248, 2376341, 4752682, 9505364, 19010728]

約数ペア:

[(1, 19010728), (2, 9505364), (4, 4752682), (8, 2376341), (11, 1728248), (22, 864124), (44, 432062), (88, 216031), (349, 54472), (619, 30712), (698, 27236), (1238, 15356), (1396, 13618), (2476, 7678), (2792, 6809), (3839, 4952)]