20016892

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1399}}^1$

素因数の和:1490

約数の個数: 36

約数和(自身を含む): 41336400

約数和(自身を除く): 21319508

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1399, 2044, 2798, 3577, 5596, 7154, 9793, 14308, 19586, 39172, 68551, 102127, 137102, 204254, 274204, 408508, 714889, 1429778, 2859556, 5004223, 10008446, 20016892]

約数ペア:

[(1, 20016892), (2, 10008446), (4, 5004223), (7, 2859556), (14, 1429778), (28, 714889), (49, 408508), (73, 274204), (98, 204254), (146, 137102), (196, 102127), (292, 68551), (511, 39172), (1022, 19586), (1399, 14308), (2044, 9793), (2798, 7154), (3577, 5596)]