21340144

素因数分解:

$2^4\times 7^1\times {\mathrm{190537}}^1$

素因数の和:190552

約数の個数: 20

約数和(自身を含む): 47253424

約数和(自身を除く): 25913280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190537, 381074, 762148, 1333759, 1524296, 2667518, 3048592, 5335036, 10670072, 21340144]

約数ペア:

[(1, 21340144), (2, 10670072), (4, 5335036), (7, 3048592), (8, 2667518), (14, 1524296), (16, 1333759), (28, 762148), (56, 381074), (112, 190537)]