21070665

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2027}}^1$

素因数の和:2059

約数の個数: 64

約数和(自身を含む): 46725120

約数和(自身を除く): 25654455

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 135, 165, 189, 231, 297, 315, 385, 495, 693, 945, 1155, 1485, 2027, 2079, 3465, 6081, 10135, 10395, 14189, 18243, 22297, 30405, 42567, 54729, 66891, 70945, 91215, 111485, 127701, 156079, 200673, 212835, 273645, 334455, 383103, 468237, 602019, 638505, 780395, 1003365, 1404711, 1915515, 2341185, 3010095, 4214133, 7023555, 21070665]

約数ペア:

[(1, 21070665), (3, 7023555), (5, 4214133), (7, 3010095), (9, 2341185), (11, 1915515), (15, 1404711), (21, 1003365), (27, 780395), (33, 638505), (35, 602019), (45, 468237), (55, 383103), (63, 334455), (77, 273645), (99, 212835), (105, 200673), (135, 156079), (165, 127701), (189, 111485), (231, 91215), (297, 70945), (315, 66891), (385, 54729), (495, 42567), (693, 30405), (945, 22297), (1155, 18243), (1485, 14189), (2027, 10395), (2079, 10135), (3465, 6081)]