20913792

素因数分解:

$2^7\times 3^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:633

約数の個数: 64

約数和(自身を含む): 56181600

約数和(自身を除く): 35267808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 107, 128, 192, 214, 321, 384, 428, 509, 642, 856, 1018, 1284, 1527, 1712, 2036, 2568, 3054, 3424, 4072, 5136, 6108, 6848, 8144, 10272, 12216, 13696, 16288, 20544, 24432, 32576, 41088, 48864, 54463, 65152, 97728, 108926, 163389, 195456, 217852, 326778, 435704, 653556, 871408, 1307112, 1742816, 2614224, 3485632, 5228448, 6971264, 10456896, 20913792]

約数ペア:

[(1, 20913792), (2, 10456896), (3, 6971264), (4, 5228448), (6, 3485632), (8, 2614224), (12, 1742816), (16, 1307112), (24, 871408), (32, 653556), (48, 435704), (64, 326778), (96, 217852), (107, 195456), (128, 163389), (192, 108926), (214, 97728), (321, 65152), (384, 54463), (428, 48864), (509, 41088), (642, 32576), (856, 24432), (1018, 20544), (1284, 16288), (1527, 13696), (1712, 12216), (2036, 10272), (2568, 8144), (3054, 6848), (3424, 6108), (4072, 5136)]