18670905

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 37180416

約数和(自身を除く): 18509511

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 121, 127, 135, 165, 243, 297, 363, 381, 405, 495, 605, 635, 891, 1089, 1143, 1215, 1397, 1485, 1815, 1905, 2673, 3267, 3429, 4191, 4455, 5445, 5715, 6985, 9801, 10287, 12573, 13365, 15367, 16335, 17145, 20955, 29403, 30861, 37719, 46101, 49005, 51435, 62865, 76835, 113157, 138303, 147015, 154305, 188595, 230505, 339471, 414909, 565785, 691515, 1244727, 1697355, 2074545, 3734181, 6223635, 18670905]

約数ペア:

[(1, 18670905), (3, 6223635), (5, 3734181), (9, 2074545), (11, 1697355), (15, 1244727), (27, 691515), (33, 565785), (45, 414909), (55, 339471), (81, 230505), (99, 188595), (121, 154305), (127, 147015), (135, 138303), (165, 113157), (243, 76835), (297, 62865), (363, 51435), (381, 49005), (405, 46101), (495, 37719), (605, 30861), (635, 29403), (891, 20955), (1089, 17145), (1143, 16335), (1215, 15367), (1397, 13365), (1485, 12573), (1815, 10287), (1905, 9801), (2673, 6985), (3267, 5715), (3429, 5445), (4191, 4455)]