20996522

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{563}}^1\times {\mathrm{643}}^1$

素因数の和:1237

約数の個数: 16

約数和(自身を含む): 32689440

約数和(自身を除く): 11692918

約数列:

[1, 2, 29, 58, 563, 643, 1126, 1286, 16327, 18647, 32654, 37294, 362009, 724018, 10498261, 20996522]

約数ペア:

[(1, 20996522), (2, 10498261), (29, 724018), (58, 362009), (563, 37294), (643, 32654), (1126, 18647), (1286, 16327)]