20914712

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28729}}^1$

素因数の和:28755

約数の個数: 32

約数和(自身を含む): 48266400

約数和(自身を除く): 27351688

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28729, 57458, 114916, 201103, 229832, 373477, 402206, 746954, 804412, 1493908, 1608824, 2614339, 2987816, 5228678, 10457356, 20914712]

約数ペア:

[(1, 20914712), (2, 10457356), (4, 5228678), (7, 2987816), (8, 2614339), (13, 1608824), (14, 1493908), (26, 804412), (28, 746954), (52, 402206), (56, 373477), (91, 229832), (104, 201103), (182, 114916), (364, 57458), (728, 28729)]