18196731

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{479}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 31595520

約数和(自身を除く): 13398789

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 469, 479, 567, 603, 1407, 1437, 1809, 3353, 4221, 4311, 5427, 10059, 12663, 12933, 30177, 32093, 37989, 38799, 90531, 96279, 224651, 271593, 288837, 673953, 866511, 2021859, 2599533, 6065577, 18196731]

約数ペア:

[(1, 18196731), (3, 6065577), (7, 2599533), (9, 2021859), (21, 866511), (27, 673953), (63, 288837), (67, 271593), (81, 224651), (189, 96279), (201, 90531), (469, 38799), (479, 37989), (567, 32093), (603, 30177), (1407, 12933), (1437, 12663), (1809, 10059), (3353, 5427), (4221, 4311)]