81734961

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 142534656

約数和(自身を除く): 60799695

約数列:

[1, 3, 7, 11, 21, 33, 37, 73, 77, 111, 131, 219, 231, 259, 393, 407, 511, 777, 803, 917, 1221, 1441, 1533, 2409, 2701, 2751, 2849, 4323, 4847, 5621, 8103, 8547, 9563, 10087, 14541, 16863, 18907, 28689, 29711, 30261, 33929, 53317, 56721, 66941, 89133, 101787, 105193, 159951, 200823, 207977, 315579, 353831, 373219, 623931, 736351, 1061493, 1119657, 2209053, 2476817, 3892141, 7430451, 11676423, 27244987, 81734961]

約数ペア:

[(1, 81734961), (3, 27244987), (7, 11676423), (11, 7430451), (21, 3892141), (33, 2476817), (37, 2209053), (73, 1119657), (77, 1061493), (111, 736351), (131, 623931), (219, 373219), (231, 353831), (259, 315579), (393, 207977), (407, 200823), (511, 159951), (777, 105193), (803, 101787), (917, 89133), (1221, 66941), (1441, 56721), (1533, 53317), (2409, 33929), (2701, 30261), (2751, 29711), (2849, 28689), (4323, 18907), (4847, 16863), (5621, 14541), (8103, 10087), (8547, 9563)]