20819218

素因数分解:

$2^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1949}}^1$

素因数の和:2074

約数の個数: 24

約数和(自身を含む): 36679500

約数和(自身を除く): 15860282

約数列:

[1, 2, 7, 14, 49, 98, 109, 218, 763, 1526, 1949, 3898, 5341, 10682, 13643, 27286, 95501, 191002, 212441, 424882, 1487087, 2974174, 10409609, 20819218]

約数ペア:

[(1, 20819218), (2, 10409609), (7, 2974174), (14, 1487087), (49, 424882), (98, 212441), (109, 191002), (218, 95501), (763, 27286), (1526, 13643), (1949, 10682), (3898, 5341)]