20874392

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 51217920

約数和(自身を除く): 30343528

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 47, 49, 56, 77, 88, 94, 98, 103, 154, 188, 196, 206, 308, 329, 376, 392, 412, 517, 539, 616, 658, 721, 824, 1034, 1078, 1133, 1316, 1442, 2068, 2156, 2266, 2303, 2632, 2884, 3619, 4136, 4312, 4532, 4606, 4841, 5047, 5768, 7238, 7931, 9064, 9212, 9682, 10094, 14476, 15862, 18424, 19364, 20188, 25333, 28952, 31724, 33887, 38728, 40376, 50666, 53251, 55517, 63448, 67774, 101332, 106502, 111034, 135548, 202664, 213004, 222068, 237209, 271096, 372757, 426008, 444136, 474418, 745514, 948836, 1491028, 1897672, 2609299, 2982056, 5218598, 10437196, 20874392]

約数ペア:

[(1, 20874392), (2, 10437196), (4, 5218598), (7, 2982056), (8, 2609299), (11, 1897672), (14, 1491028), (22, 948836), (28, 745514), (44, 474418), (47, 444136), (49, 426008), (56, 372757), (77, 271096), (88, 237209), (94, 222068), (98, 213004), (103, 202664), (154, 135548), (188, 111034), (196, 106502), (206, 101332), (308, 67774), (329, 63448), (376, 55517), (392, 53251), (412, 50666), (517, 40376), (539, 38728), (616, 33887), (658, 31724), (721, 28952), (824, 25333), (1034, 20188), (1078, 19364), (1133, 18424), (1316, 15862), (1442, 14476), (2068, 10094), (2156, 9682), (2266, 9212), (2303, 9064), (2632, 7931), (2884, 7238), (3619, 5768), (4136, 5047), (4312, 4841), (4532, 4606)]