21048339

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11483}}^1$

素因数の和:11546

約数の個数: 16

約数和(自身を含む): 30868992

約数和(自身を除く): 9820653

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 11483, 34449, 149279, 447837, 539701, 1619103, 7016113, 21048339]

約数ペア:

[(1, 21048339), (3, 7016113), (13, 1619103), (39, 539701), (47, 447837), (141, 149279), (611, 34449), (1833, 11483)]