18987038

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{25589}}^1$

素因数の和:25651

約数の個数: 16

約数和(自身を含む): 33164640

約数和(自身を除く): 14177602

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 25589, 51178, 179123, 358246, 1356217, 2712434, 9493519, 18987038]

約数ペア:

[(1, 18987038), (2, 9493519), (7, 2712434), (14, 1356217), (53, 358246), (106, 179123), (371, 51178), (742, 25589)]