18091557

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:514

約数の個数: 36

約数和(自身を含む): 29565900

約数和(自身を除く): 11474343

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 121, 333, 363, 407, 449, 1089, 1221, 1347, 3663, 4041, 4477, 4939, 13431, 14817, 16613, 40293, 44451, 49839, 54329, 149517, 162987, 182743, 488961, 548229, 1644687, 2010173, 6030519, 18091557]

約数ペア:

[(1, 18091557), (3, 6030519), (9, 2010173), (11, 1644687), (33, 548229), (37, 488961), (99, 182743), (111, 162987), (121, 149517), (333, 54329), (363, 49839), (407, 44451), (449, 40293), (1089, 16613), (1221, 14817), (1347, 13431), (3663, 4939), (4041, 4477)]