21453687

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 33523200

約数和(自身を除く): 12069513

約数列:

[1, 3, 9, 23, 27, 69, 179, 193, 207, 537, 579, 621, 1611, 1737, 4117, 4439, 4833, 5211, 12351, 13317, 34547, 37053, 39951, 103641, 111159, 119853, 310923, 794581, 932769, 2383743, 7151229, 21453687]

約数ペア:

[(1, 21453687), (3, 7151229), (9, 2383743), (23, 932769), (27, 794581), (69, 310923), (179, 119853), (193, 111159), (207, 103641), (537, 39951), (579, 37053), (621, 34547), (1611, 13317), (1737, 12351), (4117, 5211), (4439, 4833)]