2051205135

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{23911}}^1$

素因数の和:23988

約数の個数: 64

約数和(自身を含む): 4040171520

約数和(自身を除く): 1988966385

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 105, 129, 133, 215, 285, 301, 399, 645, 665, 817, 903, 1505, 1995, 2451, 4085, 4515, 5719, 12255, 17157, 23911, 28595, 71733, 85785, 119555, 167377, 358665, 454309, 502131, 836885, 1028173, 1362927, 2271545, 2510655, 3084519, 3180163, 5140865, 6814635, 7197211, 9540489, 15422595, 15900815, 19535287, 21591633, 35986055, 47702445, 58605861, 97676435, 107958165, 136747009, 293029305, 410241027, 683735045, 2051205135]

約数ペア:

[(1, 2051205135), (3, 683735045), (5, 410241027), (7, 293029305), (15, 136747009), (19, 107958165), (21, 97676435), (35, 58605861), (43, 47702445), (57, 35986055), (95, 21591633), (105, 19535287), (129, 15900815), (133, 15422595), (215, 9540489), (285, 7197211), (301, 6814635), (399, 5140865), (645, 3180163), (665, 3084519), (817, 2510655), (903, 2271545), (1505, 1362927), (1995, 1028173), (2451, 836885), (4085, 502131), (4515, 454309), (5719, 358665), (12255, 167377), (17157, 119555), (23911, 85785), (28595, 71733)]