21281007

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33941}}^1$

素因数の和:33974

約数の個数: 16

約数和(自身を含む): 32584320

約数和(自身を除く): 11303313

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33941, 101823, 373351, 644879, 1120053, 1934637, 7093669, 21281007]

約数ペア:

[(1, 21281007), (3, 7093669), (11, 1934637), (19, 1120053), (33, 644879), (57, 373351), (209, 101823), (627, 33941)]