9721215

素因数分解:

$3^7\times 5^1\times 7^1\times {\mathrm{127}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 20152320

約数和(自身を除く): 10431105

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 127, 135, 189, 243, 315, 381, 405, 567, 635, 729, 889, 945, 1143, 1215, 1701, 1905, 2187, 2667, 2835, 3429, 3645, 4445, 5103, 5715, 8001, 8505, 10287, 10935, 13335, 15309, 17145, 24003, 25515, 30861, 40005, 51435, 72009, 76545, 92583, 120015, 154305, 216027, 277749, 360045, 462915, 648081, 1080135, 1388745, 1944243, 3240405, 9721215]

約数ペア:

[(1, 9721215), (3, 3240405), (5, 1944243), (7, 1388745), (9, 1080135), (15, 648081), (21, 462915), (27, 360045), (35, 277749), (45, 216027), (63, 154305), (81, 120015), (105, 92583), (127, 76545), (135, 72009), (189, 51435), (243, 40005), (315, 30861), (381, 25515), (405, 24003), (567, 17145), (635, 15309), (729, 13335), (889, 10935), (945, 10287), (1143, 8505), (1215, 8001), (1701, 5715), (1905, 5103), (2187, 4445), (2667, 3645), (2835, 3429)]