19977538

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 35449344

約数和(自身を除く): 15471806

約数列:

[1, 2, 7, 14, 47, 94, 97, 194, 313, 329, 626, 658, 679, 1358, 2191, 4382, 4559, 9118, 14711, 29422, 30361, 31913, 60722, 63826, 102977, 205954, 212527, 425054, 1426967, 2853934, 9988769, 19977538]

約数ペア:

[(1, 19977538), (2, 9988769), (7, 2853934), (14, 1426967), (47, 425054), (94, 212527), (97, 205954), (194, 102977), (313, 63826), (329, 60722), (626, 31913), (658, 30361), (679, 29422), (1358, 14711), (2191, 9118), (4382, 4559)]