20597984

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:543

約数の個数: 48

約数和(自身を含む): 44634240

約数和(自身を除く): 24036256

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 163, 176, 326, 352, 359, 652, 718, 1304, 1436, 1793, 2608, 2872, 3586, 3949, 5216, 5744, 7172, 7898, 11488, 14344, 15796, 28688, 31592, 57376, 58517, 63184, 117034, 126368, 234068, 468136, 643687, 936272, 1287374, 1872544, 2574748, 5149496, 10298992, 20597984]

約数ペア:

[(1, 20597984), (2, 10298992), (4, 5149496), (8, 2574748), (11, 1872544), (16, 1287374), (22, 936272), (32, 643687), (44, 468136), (88, 234068), (163, 126368), (176, 117034), (326, 63184), (352, 58517), (359, 57376), (652, 31592), (718, 28688), (1304, 15796), (1436, 14344), (1793, 11488), (2608, 7898), (2872, 7172), (3586, 5744), (3949, 5216)]