247483215

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{261887}}^1$

素因数の和:261908

約数の個数: 32

約数和(自身を含む): 502824960

約数和(自身を除く): 255341745

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 261887, 785661, 1309435, 1833209, 2356983, 3928305, 5499627, 7070949, 9166045, 11784915, 16498881, 27498135, 35354745, 49496643, 82494405, 247483215]

約数ペア:

[(1, 247483215), (3, 82494405), (5, 49496643), (7, 35354745), (9, 27498135), (15, 16498881), (21, 11784915), (27, 9166045), (35, 7070949), (45, 5499627), (63, 3928305), (105, 2356983), (135, 1833209), (189, 1309435), (315, 785661), (945, 261887)]