21857733

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 36017280

約数和(自身を除く): 14159547

約数列:

[1, 3, 9, 17, 19, 51, 57, 73, 103, 153, 171, 219, 309, 323, 657, 927, 969, 1241, 1387, 1751, 1957, 2907, 3723, 4161, 5253, 5871, 7519, 11169, 12483, 15759, 17613, 22557, 23579, 33269, 67671, 70737, 99807, 127823, 142861, 212211, 299421, 383469, 428583, 1150407, 1285749, 2428637, 7285911, 21857733]

約数ペア:

[(1, 21857733), (3, 7285911), (9, 2428637), (17, 1285749), (19, 1150407), (51, 428583), (57, 383469), (73, 299421), (103, 212211), (153, 142861), (171, 127823), (219, 99807), (309, 70737), (323, 67671), (657, 33269), (927, 23579), (969, 22557), (1241, 17613), (1387, 15759), (1751, 12483), (1957, 11169), (2907, 7519), (3723, 5871), (4161, 5253)]