20494955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13709}}^1$

素因数の和:13750

約数の個数: 16

約数和(自身を含む): 27639360

約数和(自身を除く): 7144405

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 13709, 68545, 178217, 315307, 891085, 1576535, 4098991, 20494955]

約数ペア:

[(1, 20494955), (5, 4098991), (13, 1576535), (23, 891085), (65, 315307), (115, 178217), (299, 68545), (1495, 13709)]