20065905

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4597}}^1$

素因数の和:4705

約数の個数: 24

約数和(自身を含む): 35147112

約数和(自身を除く): 15081207

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4365, 4597, 13791, 22985, 41373, 68955, 206865, 445909, 1337727, 2229545, 4013181, 6688635, 20065905]

約数ペア:

[(1, 20065905), (3, 6688635), (5, 4013181), (9, 2229545), (15, 1337727), (45, 445909), (97, 206865), (291, 68955), (485, 41373), (873, 22985), (1455, 13791), (4365, 4597)]