251895483

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1657}}^1$

素因数の和:1816

約数の個数: 48

約数和(自身を含む): 441425920

約数和(自身を除く): 189530437

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 127, 133, 171, 381, 399, 889, 1143, 1197, 1657, 2413, 2667, 4971, 7239, 8001, 11599, 14913, 16891, 21717, 31483, 34797, 50673, 94449, 104391, 152019, 210439, 220381, 283347, 631317, 661143, 1473073, 1893951, 1983429, 3998341, 4419219, 11995023, 13257657, 27988387, 35985069, 83965161, 251895483]

約数ペア:

[(1, 251895483), (3, 83965161), (7, 35985069), (9, 27988387), (19, 13257657), (21, 11995023), (57, 4419219), (63, 3998341), (127, 1983429), (133, 1893951), (171, 1473073), (381, 661143), (399, 631317), (889, 283347), (1143, 220381), (1197, 210439), (1657, 152019), (2413, 104391), (2667, 94449), (4971, 50673), (7239, 34797), (8001, 31483), (11599, 21717), (14913, 16891)]