20497784

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6553}}^1$

素因数の和:6599

約数の個数: 32

約数和(自身を含む): 42469920

約数和(自身を除く): 21972136

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128, 6553, 13106, 26212, 52424, 111401, 150719, 222802, 301438, 445604, 602876, 891208, 1205752, 2562223, 5124446, 10248892, 20497784]

約数ペア:

[(1, 20497784), (2, 10248892), (4, 5124446), (8, 2562223), (17, 1205752), (23, 891208), (34, 602876), (46, 445604), (68, 301438), (92, 222802), (136, 150719), (184, 111401), (391, 52424), (782, 26212), (1564, 13106), (3128, 6553)]