20277803

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 25596576

約数和(自身を除く): 5318773

約数列:

[1, 7, 13, 61, 91, 169, 281, 427, 793, 1183, 1967, 3653, 5551, 10309, 17141, 25571, 47489, 72163, 119987, 222833, 332423, 1559831, 2896829, 20277803]

約数ペア:

[(1, 20277803), (7, 2896829), (13, 1559831), (61, 332423), (91, 222833), (169, 119987), (281, 72163), (427, 47489), (793, 25571), (1183, 17141), (1967, 10309), (3653, 5551)]