19986352

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30467}}^1$

素因数の和:30516

約数の個数: 20

約数和(自身を含む): 39669336

約数和(自身を除く): 19682984

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30467, 60934, 121868, 243736, 487472, 1249147, 2498294, 4996588, 9993176, 19986352]

約数ペア:

[(1, 19986352), (2, 9993176), (4, 4996588), (8, 2498294), (16, 1249147), (41, 487472), (82, 243736), (164, 121868), (328, 60934), (656, 30467)]