28303749

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:431

約数の個数: 40

約数和(自身を含む): 45476640

約数和(自身を除く): 17172891

約数列:

[1, 3, 9, 19, 27, 53, 57, 81, 159, 171, 347, 477, 513, 1007, 1041, 1431, 1539, 3021, 3123, 4293, 6593, 9063, 9369, 18391, 19779, 27189, 28107, 55173, 59337, 81567, 165519, 178011, 349429, 496557, 534033, 1048287, 1489671, 3144861, 9434583, 28303749]

約数ペア:

[(1, 28303749), (3, 9434583), (9, 3144861), (19, 1489671), (27, 1048287), (53, 534033), (57, 496557), (81, 349429), (159, 178011), (171, 165519), (347, 81567), (477, 59337), (513, 55173), (1007, 28107), (1041, 27189), (1431, 19779), (1539, 18391), (3021, 9369), (3123, 9063), (4293, 6593)]