19820048

素因数分解:

$2^4\times {\mathrm{1109}}^1\times {\mathrm{1117}}^1$

素因数の和:2234

約数の個数: 20

約数和(自身を含む): 38470380

約数和(自身を除く): 18650332

約数列:

[1, 2, 4, 8, 16, 1109, 1117, 2218, 2234, 4436, 4468, 8872, 8936, 17744, 17872, 1238753, 2477506, 4955012, 9910024, 19820048]

約数ペア:

[(1, 19820048), (2, 9910024), (4, 4955012), (8, 2477506), (16, 1238753), (1109, 17872), (1117, 17744), (2218, 8936), (2234, 8872), (4436, 4468)]