21385035

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2341}}^1$

素因数の和:2388

約数の個数: 48

約数和(自身を含む): 43842240

約数和(自身を除く): 22457205

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 2341, 3045, 7023, 9135, 11705, 16387, 21069, 35115, 49161, 67889, 81935, 105345, 147483, 203667, 245805, 339445, 475223, 611001, 737415, 1018335, 1425669, 2376115, 3055005, 4277007, 7128345, 21385035]

約数ペア:

[(1, 21385035), (3, 7128345), (5, 4277007), (7, 3055005), (9, 2376115), (15, 1425669), (21, 1018335), (29, 737415), (35, 611001), (45, 475223), (63, 339445), (87, 245805), (105, 203667), (145, 147483), (203, 105345), (261, 81935), (315, 67889), (435, 49161), (609, 35115), (1015, 21069), (1305, 16387), (1827, 11705), (2341, 9135), (3045, 7023)]