21452589

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4523}}^1$

素因数の和:4577

約数の個数: 24

約数和(自身を含む): 33875712

約数和(自身を除く): 12423123

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 279, 527, 1581, 4523, 4743, 13569, 40707, 76891, 140213, 230673, 420639, 692019, 1261917, 2383621, 7150863, 21452589]

約数ペア:

[(1, 21452589), (3, 7150863), (9, 2383621), (17, 1261917), (31, 692019), (51, 420639), (93, 230673), (153, 140213), (279, 76891), (527, 40707), (1581, 13569), (4523, 4743)]