2542267

素因数分解:

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

素因数の和:347

約数の個数: 18

約数和(自身を含む): 3212748

約数和(自身を除く): 670481

約数列:

[1, 7, 13, 49, 91, 169, 307, 637, 1183, 2149, 3991, 8281, 15043, 27937, 51883, 195559, 363181, 2542267]

約数ペア:

[(1, 2542267), (7, 363181), (13, 195559), (49, 51883), (91, 27937), (169, 15043), (307, 8281), (637, 3991), (1183, 2149)]