212393555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2897}}^1$

素因数の和:2987

約数の個数: 32

約数和(自身を含む): 293787648

約数和(自身を除く): 81394093

約数列:

[1, 5, 11, 31, 43, 55, 155, 215, 341, 473, 1333, 1705, 2365, 2897, 6665, 14485, 14663, 31867, 73315, 89807, 124571, 159335, 449035, 622855, 987877, 1370281, 3861701, 4939385, 6851405, 19308505, 42478711, 212393555]

約数ペア:

[(1, 212393555), (5, 42478711), (11, 19308505), (31, 6851405), (43, 4939385), (55, 3861701), (155, 1370281), (215, 987877), (341, 622855), (473, 449035), (1333, 159335), (1705, 124571), (2365, 89807), (2897, 73315), (6665, 31867), (14485, 14663)]