21413703

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1907}}^1$

素因数の和:2126

約数の個数: 16

約数和(自身を含む): 30222720

約数和(自身を除く): 8809017

約数列:

[1, 3, 19, 57, 197, 591, 1907, 3743, 5721, 11229, 36233, 108699, 375679, 1127037, 7137901, 21413703]

約数ペア:

[(1, 21413703), (3, 7137901), (19, 1127037), (57, 375679), (197, 108699), (591, 36233), (1907, 11229), (3743, 5721)]