20981103

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{48907}}^1$

素因数の和:48934

約数の個数: 16

約数和(自身を含む): 32866176

約数和(自身を除く): 11885073

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 48907, 146721, 537977, 635791, 1613931, 1907373, 6993701, 20981103]

約数ペア:

[(1, 20981103), (3, 6993701), (11, 1907373), (13, 1613931), (33, 635791), (39, 537977), (143, 146721), (429, 48907)]