2161215

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{2287}}^1$

素因数の和:2308

約数の個数: 32

約数和(自身を含む): 4392960

約数和(自身を除く): 2231745

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 2287, 6861, 11435, 16009, 20583, 34305, 48027, 61749, 80045, 102915, 144081, 240135, 308745, 432243, 720405, 2161215]

約数ペア:

[(1, 2161215), (3, 720405), (5, 432243), (7, 308745), (9, 240135), (15, 144081), (21, 102915), (27, 80045), (35, 61749), (45, 48027), (63, 34305), (105, 20583), (135, 16009), (189, 11435), (315, 6861), (945, 2287)]