20357428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55927}}^1$

素因数の和:55951

約数の個数: 24

約数和(自身を含む): 43847552

約数和(自身を除く): 23490124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 55927, 111854, 223708, 391489, 727051, 782978, 1454102, 1565956, 2908204, 5089357, 10178714, 20357428]

約数ペア:

[(1, 20357428), (2, 10178714), (4, 5089357), (7, 2908204), (13, 1565956), (14, 1454102), (26, 782978), (28, 727051), (52, 391489), (91, 223708), (182, 111854), (364, 55927)]