19639675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4201}}^1$

素因数の和:4239

約数の個数: 24

約数和(自身を含む): 28136592

約数和(自身を除く): 8496917

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4201, 4675, 21005, 46211, 71417, 105025, 231055, 357085, 785587, 1155275, 1785425, 3927935, 19639675]

約数ペア:

[(1, 19639675), (5, 3927935), (11, 1785425), (17, 1155275), (25, 785587), (55, 357085), (85, 231055), (187, 105025), (275, 71417), (425, 46211), (935, 21005), (4201, 4675)]