981780261

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1931}}^1$

素因数の和:2054

約数の個数: 64

約数和(自身を含む): 1709309952

約数和(自身を除く): 727529691

約数列:

[1, 3, 7, 11, 21, 31, 33, 71, 77, 93, 213, 217, 231, 341, 497, 651, 781, 1023, 1491, 1931, 2201, 2343, 2387, 5467, 5793, 6603, 7161, 13517, 15407, 16401, 21241, 24211, 40551, 46221, 59861, 63723, 72633, 137101, 148687, 169477, 179583, 411303, 419027, 446061, 508431, 658471, 959707, 1257081, 1508111, 1975413, 2879121, 4250131, 4524333, 4609297, 10556777, 12750393, 13827891, 29750917, 31670331, 46751441, 89252751, 140254323, 327260087, 981780261]

約数ペア:

[(1, 981780261), (3, 327260087), (7, 140254323), (11, 89252751), (21, 46751441), (31, 31670331), (33, 29750917), (71, 13827891), (77, 12750393), (93, 10556777), (213, 4609297), (217, 4524333), (231, 4250131), (341, 2879121), (497, 1975413), (651, 1508111), (781, 1257081), (1023, 959707), (1491, 658471), (1931, 508431), (2201, 446061), (2343, 419027), (2387, 411303), (5467, 179583), (5793, 169477), (6603, 148687), (7161, 137101), (13517, 72633), (15407, 63723), (16401, 59861), (21241, 46221), (24211, 40551)]