21917379

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{11257}}^1$

素因数の和:11330

約数の個数: 16

約数和(自身を含む): 32423040

約数和(自身を除く): 10505661

約数列:

[1, 3, 11, 33, 59, 177, 649, 1947, 11257, 33771, 123827, 371481, 664163, 1992489, 7305793, 21917379]

約数ペア:

[(1, 21917379), (3, 7305793), (11, 1992489), (33, 664163), (59, 371481), (177, 123827), (649, 33771), (1947, 11257)]