21516705

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22769}}^1$

素因数の和:22790

約数の個数: 32

約数和(自身を含む): 43718400

約数和(自身を除く): 22201695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22769, 68307, 113845, 159383, 204921, 341535, 478149, 614763, 796915, 1024605, 1434447, 2390745, 3073815, 4303341, 7172235, 21516705]

約数ペア:

[(1, 21516705), (3, 7172235), (5, 4303341), (7, 3073815), (9, 2390745), (15, 1434447), (21, 1024605), (27, 796915), (35, 614763), (45, 478149), (63, 341535), (105, 204921), (135, 159383), (189, 113845), (315, 68307), (945, 22769)]