20384812

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{9973}}^1$

素因数の和:10057

約数の個数: 24

約数和(自身を含む): 41332256

約数和(自身を除く): 20947444

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 9973, 19946, 39892, 69811, 139622, 279244, 728029, 1456058, 2912116, 5096203, 10192406, 20384812]

約数ペア:

[(1, 20384812), (2, 10192406), (4, 5096203), (7, 2912116), (14, 1456058), (28, 728029), (73, 279244), (146, 139622), (292, 69811), (511, 39892), (1022, 19946), (2044, 9973)]