51237711

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 94556160

約数和(自身を除く): 43318449

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 111, 119, 153, 189, 259, 333, 357, 431, 459, 629, 777, 999, 1071, 1293, 1887, 2331, 3017, 3213, 3879, 4403, 5661, 6993, 7327, 9051, 11637, 13209, 15947, 16983, 21981, 27153, 39627, 47841, 51289, 65943, 81459, 111629, 118881, 143523, 153867, 197829, 271099, 334887, 430569, 461601, 813297, 1004661, 1384803, 1897693, 2439891, 3013983, 5693079, 7319673, 17079237, 51237711]

約数ペア:

[(1, 51237711), (3, 17079237), (7, 7319673), (9, 5693079), (17, 3013983), (21, 2439891), (27, 1897693), (37, 1384803), (51, 1004661), (63, 813297), (111, 461601), (119, 430569), (153, 334887), (189, 271099), (259, 197829), (333, 153867), (357, 143523), (431, 118881), (459, 111629), (629, 81459), (777, 65943), (999, 51289), (1071, 47841), (1293, 39627), (1887, 27153), (2331, 21981), (3017, 16983), (3213, 15947), (3879, 13209), (4403, 11637), (5661, 9051), (6993, 7327)]