19185904

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{16889}}^1$

素因数の和:16968

約数の個数: 20

約数和(自身を含む): 37698480

約数和(自身を除く): 18512576

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 16889, 33778, 67556, 135112, 270224, 1199119, 2398238, 4796476, 9592952, 19185904]

約数ペア:

[(1, 19185904), (2, 9592952), (4, 4796476), (8, 2398238), (16, 1199119), (71, 270224), (142, 135112), (284, 67556), (568, 33778), (1136, 16889)]