21971763

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2551}}^1$

素因数の和:2600

約数の個数: 32

約数和(自身を含む): 36748800

約数和(自身を除く): 14777037

約数列:

[1, 3, 9, 11, 27, 29, 33, 87, 99, 261, 297, 319, 783, 957, 2551, 2871, 7653, 8613, 22959, 28061, 68877, 73979, 84183, 221937, 252549, 665811, 757647, 813769, 1997433, 2441307, 7323921, 21971763]

約数ペア:

[(1, 21971763), (3, 7323921), (9, 2441307), (11, 1997433), (27, 813769), (29, 757647), (33, 665811), (87, 252549), (99, 221937), (261, 84183), (297, 73979), (319, 68877), (783, 28061), (957, 22959), (2551, 8613), (2871, 7653)]