20367724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9109}}^1$

素因数の和:9169

約数の個数: 24

約数和(自身を含む): 39282320

約数和(自身を除く): 18914596

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9109, 18218, 36436, 118417, 236834, 391687, 473668, 783374, 1566748, 5091931, 10183862, 20367724]

約数ペア:

[(1, 20367724), (2, 10183862), (4, 5091931), (13, 1566748), (26, 783374), (43, 473668), (52, 391687), (86, 236834), (172, 118417), (559, 36436), (1118, 18218), (2236, 9109)]