18563337

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 60

約数和(自身を含む): 32243596

約数和(自身を除く): 13680259

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 61, 81, 117, 153, 183, 221, 289, 351, 459, 549, 663, 793, 867, 1037, 1053, 1377, 1647, 1989, 2379, 2601, 3111, 3757, 4941, 5967, 7137, 7803, 9333, 11271, 13481, 17629, 17901, 21411, 23409, 27999, 33813, 40443, 52887, 64233, 83997, 101439, 121329, 158661, 229177, 304317, 363987, 475983, 687531, 1091961, 1427949, 2062593, 6187779, 18563337]

約数ペア:

[(1, 18563337), (3, 6187779), (9, 2062593), (13, 1427949), (17, 1091961), (27, 687531), (39, 475983), (51, 363987), (61, 304317), (81, 229177), (117, 158661), (153, 121329), (183, 101439), (221, 83997), (289, 64233), (351, 52887), (459, 40443), (549, 33813), (663, 27999), (793, 23409), (867, 21411), (1037, 17901), (1053, 17629), (1377, 13481), (1647, 11271), (1989, 9333), (2379, 7803), (2601, 7137), (3111, 5967), (3757, 4941)]