19719290

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{15527}}^1$

素因数の和:15661

約数の個数: 16

約数和(自身を含む): 35776512

約数和(自身を除く): 16057222

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 15527, 31054, 77635, 155270, 1971929, 3943858, 9859645, 19719290]

約数ペア:

[(1, 19719290), (2, 9859645), (5, 3943858), (10, 1971929), (127, 155270), (254, 77635), (635, 31054), (1270, 15527)]