2989987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 32

約数和(自身を含む): 4193280

約数和(自身を除く): 1203293

約数列:

[1, 7, 11, 13, 29, 77, 91, 103, 143, 203, 319, 377, 721, 1001, 1133, 1339, 2233, 2639, 2987, 4147, 7931, 9373, 14729, 20909, 29029, 32857, 38831, 103103, 229999, 271817, 427141, 2989987]

約数ペア:

[(1, 2989987), (7, 427141), (11, 271817), (13, 229999), (29, 103103), (77, 38831), (91, 32857), (103, 29029), (143, 20909), (203, 14729), (319, 9373), (377, 7931), (721, 4147), (1001, 2987), (1133, 2639), (1339, 2233)]