211970521

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2719}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 259226880

約数和(自身を除く): 47256359

約数列:

[1, 7, 37, 43, 49, 259, 301, 1591, 1813, 2107, 2719, 11137, 19033, 77959, 100603, 116917, 133231, 704221, 818419, 4325929, 4929547, 5728933, 30281503, 211970521]

約数ペア:

[(1, 211970521), (7, 30281503), (37, 5728933), (43, 4929547), (49, 4325929), (259, 818419), (301, 704221), (1591, 133231), (1813, 116917), (2107, 100603), (2719, 77959), (11137, 19033)]