243357399

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 388730880

約数和(自身を除く): 145373481

約数列:

[1, 3, 9, 27, 37, 47, 71, 73, 111, 141, 213, 219, 333, 423, 639, 657, 999, 1269, 1739, 1917, 1971, 2627, 2701, 3337, 3431, 5183, 5217, 7881, 8103, 10011, 10293, 15549, 15651, 23643, 24309, 30033, 30879, 46647, 46953, 70929, 72927, 90099, 92637, 123469, 126947, 139941, 191771, 243601, 370407, 380841, 575313, 730803, 1111221, 1142523, 1725939, 2192409, 3333663, 3427569, 5177817, 6577227, 9013237, 27039711, 81119133, 243357399]

約数ペア:

[(1, 243357399), (3, 81119133), (9, 27039711), (27, 9013237), (37, 6577227), (47, 5177817), (71, 3427569), (73, 3333663), (111, 2192409), (141, 1725939), (213, 1142523), (219, 1111221), (333, 730803), (423, 575313), (639, 380841), (657, 370407), (999, 243601), (1269, 191771), (1739, 139941), (1917, 126947), (1971, 123469), (2627, 92637), (2701, 90099), (3337, 72927), (3431, 70929), (5183, 46953), (5217, 46647), (7881, 30879), (8103, 30033), (10011, 24309), (10293, 23643), (15549, 15651)]