20339888

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{74779}}^1$

素因数の和:74804

約数の個数: 20

約数和(自身を含む): 41727240

約数和(自身を除く): 21387352

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 74779, 149558, 299116, 598232, 1196464, 1271243, 2542486, 5084972, 10169944, 20339888]

約数ペア:

[(1, 20339888), (2, 10169944), (4, 5084972), (8, 2542486), (16, 1271243), (17, 1196464), (34, 598232), (68, 299116), (136, 149558), (272, 74779)]