19399905

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{2281}}^1$

素因数の和:2308

約数の個数: 48

約数和(自身を含む): 39871104

約数和(自身を除く): 20471199

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 945, 1215, 1701, 2281, 2835, 6843, 8505, 11405, 15967, 20529, 34215, 47901, 61587, 79835, 102645, 143703, 184761, 239505, 307935, 431109, 554283, 718515, 923805, 1293327, 2155545, 2771415, 3879981, 6466635, 19399905]

約数ペア:

[(1, 19399905), (3, 6466635), (5, 3879981), (7, 2771415), (9, 2155545), (15, 1293327), (21, 923805), (27, 718515), (35, 554283), (45, 431109), (63, 307935), (81, 239505), (105, 184761), (135, 143703), (189, 102645), (243, 79835), (315, 61587), (405, 47901), (567, 34215), (945, 20529), (1215, 15967), (1701, 11405), (2281, 8505), (2835, 6843)]