18870722

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16879}}^1$

素因数の和:16937

約数の個数: 16

約数和(自身を含む): 31194240

約数和(自身を除く): 12323518

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 16879, 33758, 219427, 438854, 725797, 1451594, 9435361, 18870722]

約数ペア:

[(1, 18870722), (2, 9435361), (13, 1451594), (26, 725797), (43, 438854), (86, 219427), (559, 33758), (1118, 16879)]