21800486

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1\times {\mathrm{1019}}^1$

素因数の和:1603

約数の個数: 16

約数和(自身を含む): 34516800

約数和(自身を除く): 12716314

約数列:

[1, 2, 19, 38, 563, 1019, 1126, 2038, 10697, 19361, 21394, 38722, 573697, 1147394, 10900243, 21800486]

約数ペア:

[(1, 21800486), (2, 10900243), (19, 1147394), (38, 573697), (563, 38722), (1019, 21394), (1126, 19361), (2038, 10697)]