18249959

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 24385536

約数和(自身を除く): 6135577

約数列:

[1, 7, 13, 17, 47, 91, 119, 221, 251, 329, 611, 799, 1547, 1757, 3263, 4267, 4277, 5593, 10387, 11797, 22841, 29869, 55471, 72709, 82579, 153361, 200549, 388297, 1073527, 1403843, 2607137, 18249959]

約数ペア:

[(1, 18249959), (7, 2607137), (13, 1403843), (17, 1073527), (47, 388297), (91, 200549), (119, 153361), (221, 82579), (251, 72709), (329, 55471), (611, 29869), (799, 22841), (1547, 11797), (1757, 10387), (3263, 5593), (4267, 4277)]