21194277

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1297}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 30528960

約数和(自身を除く): 9334683

約数列:

[1, 3, 13, 39, 419, 1257, 1297, 3891, 5447, 16341, 16861, 50583, 543443, 1630329, 7064759, 21194277]

約数ペア:

[(1, 21194277), (3, 7064759), (13, 1630329), (39, 543443), (419, 50583), (1257, 16861), (1297, 16341), (3891, 5447)]