208287747

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 344064000

約数和(自身を除く): 135776253

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 127, 139, 171, 207, 381, 417, 437, 513, 621, 1143, 1251, 1311, 2413, 2641, 2921, 3197, 3429, 3753, 3933, 7239, 7923, 8763, 9591, 11799, 17653, 21717, 23769, 26289, 28773, 52959, 55499, 60743, 65151, 71307, 78867, 86319, 158877, 166497, 182229, 335407, 406019, 476631, 499491, 546687, 1006221, 1218057, 1498473, 1640061, 3018663, 3654171, 7714361, 9055989, 10962513, 23143083, 69429249, 208287747]

約数ペア:

[(1, 208287747), (3, 69429249), (9, 23143083), (19, 10962513), (23, 9055989), (27, 7714361), (57, 3654171), (69, 3018663), (127, 1640061), (139, 1498473), (171, 1218057), (207, 1006221), (381, 546687), (417, 499491), (437, 476631), (513, 406019), (621, 335407), (1143, 182229), (1251, 166497), (1311, 158877), (2413, 86319), (2641, 78867), (2921, 71307), (3197, 65151), (3429, 60743), (3753, 55499), (3933, 52959), (7239, 28773), (7923, 26289), (8763, 23769), (9591, 21717), (11799, 17653)]