21525723

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2039}}^1$

素因数の和:2088

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 13725477

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 153, 207, 391, 459, 621, 1173, 2039, 3519, 6117, 10557, 18351, 34663, 46897, 55053, 103989, 140691, 311967, 422073, 797249, 935901, 1266219, 2391747, 7175241, 21525723]

約数ペア:

[(1, 21525723), (3, 7175241), (9, 2391747), (17, 1266219), (23, 935901), (27, 797249), (51, 422073), (69, 311967), (153, 140691), (207, 103989), (391, 55053), (459, 46897), (621, 34663), (1173, 18351), (2039, 10557), (3519, 6117)]