21169539

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{2713}}^1$

素因数の和:2756

約数の個数: 24

約数和(自身を含む): 33327920

約数和(自身を除く): 12158381

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2601, 2713, 7803, 8139, 24417, 46121, 73251, 138363, 415089, 784057, 1245267, 2352171, 7056513, 21169539]

約数ペア:

[(1, 21169539), (3, 7056513), (9, 2352171), (17, 1245267), (27, 784057), (51, 415089), (153, 138363), (289, 73251), (459, 46121), (867, 24417), (2601, 8139), (2713, 7803)]