20563465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10909}}^1$

素因数の和:10956

約数の個数: 16

約数和(自身を含む): 27493200

約数和(自身を除く): 6929735

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 10909, 54545, 141817, 316361, 709085, 1581805, 4112693, 20563465]

約数ペア:

[(1, 20563465), (5, 4112693), (13, 1581805), (29, 709085), (65, 316361), (145, 141817), (377, 54545), (1885, 10909)]