19117618

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:538

約数の個数: 24

約数和(自身を含む): 31332528

約数和(自身を除く): 12214910

約数列:

[1, 2, 13, 26, 163, 169, 326, 338, 347, 694, 2119, 4238, 4511, 9022, 27547, 55094, 56561, 58643, 113122, 117286, 735293, 1470586, 9558809, 19117618]

約数ペア:

[(1, 19117618), (2, 9558809), (13, 1470586), (26, 735293), (163, 117286), (169, 113122), (326, 58643), (338, 56561), (347, 55094), (694, 27547), (2119, 9022), (4238, 4511)]