21376251

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60901}}^1$

素因数の和:60923

約数の個数: 16

約数和(自身を含む): 34105120

約数和(自身を除く): 12728869

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60901, 182703, 548109, 791713, 1644327, 2375139, 7125417, 21376251]

約数ペア:

[(1, 21376251), (3, 7125417), (9, 2375139), (13, 1644327), (27, 791713), (39, 548109), (117, 182703), (351, 60901)]