20749105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13879}}^1$

素因数の和:13920

約数の個数: 16

約数和(自身を含む): 27982080

約数和(自身を除く): 7232975

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 13879, 69395, 180427, 319217, 902135, 1596085, 4149821, 20749105]

約数ペア:

[(1, 20749105), (5, 4149821), (13, 1596085), (23, 902135), (65, 319217), (115, 180427), (299, 69395), (1495, 13879)]