20214657841

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1\times {\mathrm{4091}}^1$

素因数の和:4821

約数の個数: 32

約数和(自身を含む): 24663564288

約数和(自身を除く): 4448906447

約数列:

[1, 7, 23, 47, 161, 329, 653, 1081, 4091, 4571, 7567, 15019, 28637, 30691, 94093, 105133, 192277, 214837, 658651, 705893, 1345939, 2671423, 4422371, 4941251, 18699961, 30956597, 61442729, 125556881, 430099103, 878898167, 2887808263, 20214657841]

約数ペア:

[(1, 20214657841), (7, 2887808263), (23, 878898167), (47, 430099103), (161, 125556881), (329, 61442729), (653, 30956597), (1081, 18699961), (4091, 4941251), (4571, 4422371), (7567, 2671423), (15019, 1345939), (28637, 705893), (30691, 658651), (94093, 214837), (105133, 192277)]