20781646228

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{546943}}^1$

素因数の和:547036

約数の個数: 48

約数和(自身を含む): 44105564160

約数和(自身を除く): 23323917932

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 59, 92, 118, 161, 236, 322, 413, 644, 826, 1357, 1652, 2714, 5428, 9499, 18998, 37996, 546943, 1093886, 2187772, 3828601, 7657202, 12579689, 15314404, 25159378, 32269637, 50318756, 64539274, 88057823, 129078548, 176115646, 225887459, 352231292, 451774918, 742201651, 903549836, 1484403302, 2968806604, 5195411557, 10390823114, 20781646228]

約数ペア:

[(1, 20781646228), (2, 10390823114), (4, 5195411557), (7, 2968806604), (14, 1484403302), (23, 903549836), (28, 742201651), (46, 451774918), (59, 352231292), (92, 225887459), (118, 176115646), (161, 129078548), (236, 88057823), (322, 64539274), (413, 50318756), (644, 32269637), (826, 25159378), (1357, 15314404), (1652, 12579689), (2714, 7657202), (5428, 3828601), (9499, 2187772), (18998, 1093886), (37996, 546943)]