20371526

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 36599808

約数和(自身を除く): 16228282

約数列:

[1, 2, 7, 14, 31, 62, 73, 146, 217, 434, 511, 643, 1022, 1286, 2263, 4501, 4526, 9002, 15841, 19933, 31682, 39866, 46939, 93878, 139531, 279062, 328573, 657146, 1455109, 2910218, 10185763, 20371526]

約数ペア:

[(1, 20371526), (2, 10185763), (7, 2910218), (14, 1455109), (31, 657146), (62, 328573), (73, 279062), (146, 139531), (217, 93878), (434, 46939), (511, 39866), (643, 31682), (1022, 19933), (1286, 15841), (2263, 9002), (4501, 4526)]