2151149

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 2949408

約数和(自身を除く): 798259

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 307, 539, 637, 1001, 2149, 3377, 3991, 7007, 15043, 23639, 27937, 43901, 165473, 195559, 307307, 2151149]

約数ペア:

[(1, 2151149), (7, 307307), (11, 195559), (13, 165473), (49, 43901), (77, 27937), (91, 23639), (143, 15043), (307, 7007), (539, 3991), (637, 3377), (1001, 2149)]