51190503

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 90316800

約数和(自身を除く): 39126297

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 71, 91, 133, 139, 213, 247, 273, 399, 417, 497, 741, 923, 973, 1349, 1491, 1729, 1807, 2641, 2769, 2919, 4047, 5187, 5421, 6461, 7923, 9443, 9869, 12649, 17537, 18487, 19383, 28329, 29607, 34333, 37947, 52611, 55461, 69083, 102999, 122759, 128297, 187511, 207249, 240331, 368277, 384891, 562533, 720993, 898079, 1312577, 2437643, 2694237, 3937731, 7312929, 17063501, 51190503]

約数ペア:

[(1, 51190503), (3, 17063501), (7, 7312929), (13, 3937731), (19, 2694237), (21, 2437643), (39, 1312577), (57, 898079), (71, 720993), (91, 562533), (133, 384891), (139, 368277), (213, 240331), (247, 207249), (273, 187511), (399, 128297), (417, 122759), (497, 102999), (741, 69083), (923, 55461), (973, 52611), (1349, 37947), (1491, 34333), (1729, 29607), (1807, 28329), (2641, 19383), (2769, 18487), (2919, 17537), (4047, 12649), (5187, 9869), (5421, 9443), (6461, 7923)]