15811216

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{13537}}^1$

素因数の和:13618

約数の個数: 20

約数和(自身を含む): 31056172

約数和(自身を除く): 15244956

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 13537, 27074, 54148, 108296, 216592, 988201, 1976402, 3952804, 7905608, 15811216]

約数ペア:

[(1, 15811216), (2, 7905608), (4, 3952804), (8, 1976402), (16, 988201), (73, 216592), (146, 108296), (292, 54148), (584, 27074), (1168, 13537)]