203900913

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 321484800

約数和(自身を除く): 117583887

約数列:

[1, 3, 9, 19, 41, 57, 123, 127, 171, 229, 369, 381, 687, 779, 1143, 2061, 2337, 2413, 4351, 5207, 7011, 7239, 9389, 13053, 15621, 21717, 28167, 29083, 39159, 46863, 84501, 87249, 98933, 178391, 261747, 296799, 535173, 552577, 890397, 1192403, 1605519, 1657731, 3577209, 4973193, 10731627, 22655657, 67966971, 203900913]

約数ペア:

[(1, 203900913), (3, 67966971), (9, 22655657), (19, 10731627), (41, 4973193), (57, 3577209), (123, 1657731), (127, 1605519), (171, 1192403), (229, 890397), (369, 552577), (381, 535173), (687, 296799), (779, 261747), (1143, 178391), (2061, 98933), (2337, 87249), (2413, 84501), (4351, 46863), (5207, 39159), (7011, 29083), (7239, 28167), (9389, 21717), (13053, 15621)]