161640921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{16127}}^1$

素因数の和:16400

約数の個数: 16

約数和(自身を含む): 233017344

約数和(自身を除く): 71376423

約数列:

[1, 3, 13, 39, 257, 771, 3341, 10023, 16127, 48381, 209651, 628953, 4144639, 12433917, 53880307, 161640921]

約数ペア:

[(1, 161640921), (3, 53880307), (13, 12433917), (39, 4144639), (257, 628953), (771, 209651), (3341, 48381), (10023, 16127)]