20768156942

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{208721}}^1$

素因数の和:208868

約数の個数: 32

約数和(自身を含む): 34714643040

約数和(自身を除く): 13946486098

約数列:

[1, 2, 13, 26, 43, 86, 89, 178, 559, 1118, 1157, 2314, 3827, 7654, 49751, 99502, 208721, 417442, 2713373, 5426746, 8975003, 17950006, 18576169, 37152338, 116675039, 233350078, 241490197, 482980394, 798775267, 1597550534, 10384078471, 20768156942]

約数ペア:

[(1, 20768156942), (2, 10384078471), (13, 1597550534), (26, 798775267), (43, 482980394), (86, 241490197), (89, 233350078), (178, 116675039), (559, 37152338), (1118, 18576169), (1157, 17950006), (2314, 8975003), (3827, 5426746), (7654, 2713373), (49751, 417442), (99502, 208721)]