20801105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16843}}^1$

素因数の和:16880

約数の個数: 16

約数和(自身を含む): 28297920

約数和(自身を除く): 7496815

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 16843, 84215, 218959, 320017, 1094795, 1600085, 4160221, 20801105]

約数ペア:

[(1, 20801105), (5, 4160221), (13, 1600085), (19, 1094795), (65, 320017), (95, 218959), (247, 84215), (1235, 16843)]