19742049

素因数分解:

$3^9\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:103

約数の個数: 40

約数和(自身を含む): 31885920

約数和(自身を除く): 12143871

約数列:

[1, 3, 9, 17, 27, 51, 59, 81, 153, 177, 243, 459, 531, 729, 1003, 1377, 1593, 2187, 3009, 4131, 4779, 6561, 9027, 12393, 14337, 19683, 27081, 37179, 43011, 81243, 111537, 129033, 243729, 334611, 387099, 731187, 1161297, 2193561, 6580683, 19742049]

約数ペア:

[(1, 19742049), (3, 6580683), (9, 2193561), (17, 1161297), (27, 731187), (51, 387099), (59, 334611), (81, 243729), (153, 129033), (177, 111537), (243, 81243), (459, 43011), (531, 37179), (729, 27081), (1003, 19683), (1377, 14337), (1593, 12393), (2187, 9027), (3009, 6561), (4131, 4779)]