21139701

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{5669}}^1$

素因数の和:5796

約数の個数: 16

約数和(自身を含む): 31026240

約数和(自身を除く): 9886539

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 5669, 17007, 62359, 187077, 640597, 1921791, 7046567, 21139701]

約数ペア:

[(1, 21139701), (3, 7046567), (11, 1921791), (33, 640597), (113, 187077), (339, 62359), (1243, 17007), (3729, 5669)]