81395523

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 136770816

約数和(自身を除く): 55375293

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 243, 297, 333, 407, 823, 891, 999, 1221, 2469, 2673, 2997, 3663, 7407, 8991, 9053, 10989, 22221, 27159, 30451, 32967, 66663, 81477, 91353, 98901, 199989, 244431, 274059, 334961, 733293, 822177, 1004883, 2199879, 2466531, 3014649, 7399593, 9043947, 27131841, 81395523]

約数ペア:

[(1, 81395523), (3, 27131841), (9, 9043947), (11, 7399593), (27, 3014649), (33, 2466531), (37, 2199879), (81, 1004883), (99, 822177), (111, 733293), (243, 334961), (297, 274059), (333, 244431), (407, 199989), (823, 98901), (891, 91353), (999, 81477), (1221, 66663), (2469, 32967), (2673, 30451), (2997, 27159), (3663, 22221), (7407, 10989), (8991, 9053)]