21631064

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 51152640

約数和(自身を除く): 29521576

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 86, 91, 104, 172, 182, 301, 344, 364, 559, 602, 691, 728, 1118, 1204, 1382, 2236, 2408, 2764, 3913, 4472, 4837, 5528, 7826, 8983, 9674, 15652, 17966, 19348, 29713, 31304, 35932, 38696, 59426, 62881, 71864, 118852, 125762, 207991, 237704, 251524, 386269, 415982, 503048, 772538, 831964, 1545076, 1663928, 2703883, 3090152, 5407766, 10815532, 21631064]

約数ペア:

[(1, 21631064), (2, 10815532), (4, 5407766), (7, 3090152), (8, 2703883), (13, 1663928), (14, 1545076), (26, 831964), (28, 772538), (43, 503048), (52, 415982), (56, 386269), (86, 251524), (91, 237704), (104, 207991), (172, 125762), (182, 118852), (301, 71864), (344, 62881), (364, 59426), (559, 38696), (602, 35932), (691, 31304), (728, 29713), (1118, 19348), (1204, 17966), (1382, 15652), (2236, 9674), (2408, 8983), (2764, 7826), (3913, 5528), (4472, 4837)]