18980506

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{1361}}^1$

素因数の和:1749

約数の個数: 16

約数和(自身を含む): 30072960

約数和(自身を除く): 11092454

約数列:

[1, 2, 19, 38, 367, 734, 1361, 2722, 6973, 13946, 25859, 51718, 499487, 998974, 9490253, 18980506]

約数ペア:

[(1, 18980506), (2, 9490253), (19, 998974), (38, 499487), (367, 51718), (734, 25859), (1361, 13946), (2722, 6973)]