20973904

素因数分解:

$2^4\times 7^1\times {\mathrm{401}}^1\times {\mathrm{467}}^1$

素因数の和:883

約数の個数: 40

約数和(自身を含む): 46657728

約数和(自身を除く): 25683824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 401, 467, 802, 934, 1604, 1868, 2807, 3208, 3269, 3736, 5614, 6416, 6538, 7472, 11228, 13076, 22456, 26152, 44912, 52304, 187267, 374534, 749068, 1310869, 1498136, 2621738, 2996272, 5243476, 10486952, 20973904]

約数ペア:

[(1, 20973904), (2, 10486952), (4, 5243476), (7, 2996272), (8, 2621738), (14, 1498136), (16, 1310869), (28, 749068), (56, 374534), (112, 187267), (401, 52304), (467, 44912), (802, 26152), (934, 22456), (1604, 13076), (1868, 11228), (2807, 7472), (3208, 6538), (3269, 6416), (3736, 5614)]