19404275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1783

約数の個数: 24

約数和(自身を含む): 26904528

約数和(自身を除く): 7500253

約数列:

[1, 5, 11, 25, 41, 55, 205, 275, 451, 1025, 1721, 2255, 8605, 11275, 18931, 43025, 70561, 94655, 352805, 473275, 776171, 1764025, 3880855, 19404275]

約数ペア:

[(1, 19404275), (5, 3880855), (11, 1764025), (25, 776171), (41, 473275), (55, 352805), (205, 94655), (275, 70561), (451, 43025), (1025, 18931), (1721, 11275), (2255, 8605)]