20218179933

素因数分解:

$3^3\times 7^4\times {\mathrm{43}}^1\times {\mathrm{7253}}^1$

素因数の和:7333

約数の個数: 80

約数和(自身を含む): 35760479040

約数和(自身を除く): 15542299107

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 301, 343, 387, 441, 903, 1029, 1161, 1323, 2107, 2401, 2709, 3087, 6321, 7203, 7253, 8127, 9261, 14749, 18963, 21609, 21759, 44247, 50771, 56889, 64827, 65277, 103243, 132741, 152313, 195831, 309729, 311879, 355397, 398223, 456939, 929187, 935637, 1066191, 1370817, 2183153, 2487779, 2787561, 2806911, 3198573, 6549459, 7463337, 8420733, 9595719, 15282071, 17414453, 19648377, 22390011, 45846213, 52243359, 58945131, 67170033, 106974497, 137538639, 156730077, 320923491, 412615917, 470190231, 748821479, 962770473, 2246464437, 2888311419, 6739393311, 20218179933]

約数ペア:

[(1, 20218179933), (3, 6739393311), (7, 2888311419), (9, 2246464437), (21, 962770473), (27, 748821479), (43, 470190231), (49, 412615917), (63, 320923491), (129, 156730077), (147, 137538639), (189, 106974497), (301, 67170033), (343, 58945131), (387, 52243359), (441, 45846213), (903, 22390011), (1029, 19648377), (1161, 17414453), (1323, 15282071), (2107, 9595719), (2401, 8420733), (2709, 7463337), (3087, 6549459), (6321, 3198573), (7203, 2806911), (7253, 2787561), (8127, 2487779), (9261, 2183153), (14749, 1370817), (18963, 1066191), (21609, 935637), (21759, 929187), (44247, 456939), (50771, 398223), (56889, 355397), (64827, 311879), (65277, 309729), (103243, 195831), (132741, 152313)]