20979584

素因数分解:

$2^7\times {\mathrm{251}}^1\times {\mathrm{653}}^1$

素因数の和:918

約数の個数: 32

約数和(自身を含む): 42026040

約数和(自身を除く): 21046456

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 251, 502, 653, 1004, 1306, 2008, 2612, 4016, 5224, 8032, 10448, 16064, 20896, 32128, 41792, 83584, 163903, 327806, 655612, 1311224, 2622448, 5244896, 10489792, 20979584]

約数ペア:

[(1, 20979584), (2, 10489792), (4, 5244896), (8, 2622448), (16, 1311224), (32, 655612), (64, 327806), (128, 163903), (251, 83584), (502, 41792), (653, 32128), (1004, 20896), (1306, 16064), (2008, 10448), (2612, 8032), (4016, 5224)]