21151935

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{829}}^1$

素因数の和:859

約数の個数: 56

約数和(自身を含む): 43545120

約数和(自身を除く): 22393185

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 729, 829, 945, 1215, 1701, 2487, 2835, 3645, 4145, 5103, 5803, 7461, 8505, 12435, 17409, 22383, 25515, 29015, 37305, 52227, 67149, 87045, 111915, 156681, 201447, 261135, 335745, 470043, 604341, 783405, 1007235, 1410129, 2350215, 3021705, 4230387, 7050645, 21151935]

約数ペア:

[(1, 21151935), (3, 7050645), (5, 4230387), (7, 3021705), (9, 2350215), (15, 1410129), (21, 1007235), (27, 783405), (35, 604341), (45, 470043), (63, 335745), (81, 261135), (105, 201447), (135, 156681), (189, 111915), (243, 87045), (315, 67149), (405, 52227), (567, 37305), (729, 29015), (829, 25515), (945, 22383), (1215, 17409), (1701, 12435), (2487, 8505), (2835, 7461), (3645, 5803), (4145, 5103)]