21644493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{4051}}^1$

素因数の和:4204

約数の個数: 16

約数和(自身を含む): 31313856

約数和(自身を除く): 9669363

約数列:

[1, 3, 13, 39, 137, 411, 1781, 4051, 5343, 12153, 52663, 157989, 554987, 1664961, 7214831, 21644493]

約数ペア:

[(1, 21644493), (3, 7214831), (13, 1664961), (39, 554987), (137, 157989), (411, 52663), (1781, 12153), (4051, 5343)]