18786904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{138139}}^1$

素因数の和:138162

約数の個数: 16

約数和(自身を含む): 37297800

約数和(自身を除く): 18510896

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 138139, 276278, 552556, 1105112, 2348363, 4696726, 9393452, 18786904]

約数ペア:

[(1, 18786904), (2, 9393452), (4, 4696726), (8, 2348363), (17, 1105112), (34, 552556), (68, 276278), (136, 138139)]