21167123945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20255621}}^1$

素因数の和:20255656

約数の個数: 16

約数和(自身を含む): 29168095680

約数和(自身を除く): 8000971735

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20255621, 101278105, 222811831, 384856799, 1114059155, 1924283995, 4233424789, 21167123945]

約数ペア:

[(1, 21167123945), (5, 4233424789), (11, 1924283995), (19, 1114059155), (55, 384856799), (95, 222811831), (209, 101278105), (1045, 20255621)]