20798877

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 32117760

約数和(自身を除く): 11318883

約数列:

[1, 3, 11, 23, 33, 67, 69, 201, 253, 409, 737, 759, 1227, 1541, 2211, 4499, 4623, 9407, 13497, 16951, 27403, 28221, 50853, 82209, 103477, 301433, 310431, 630269, 904299, 1890807, 6932959, 20798877]

約数ペア:

[(1, 20798877), (3, 6932959), (11, 1890807), (23, 904299), (33, 630269), (67, 310431), (69, 301433), (201, 103477), (253, 82209), (409, 50853), (737, 28221), (759, 27403), (1227, 16951), (1541, 13497), (2211, 9407), (4499, 4623)]