20986336

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4931}}^1$

素因数の和:4967

約数の個数: 48

約数和(自身を含む): 49714560

約数和(自身を除く): 28728224

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 4931, 9862, 19724, 34517, 39448, 69034, 78896, 93689, 138068, 157792, 187378, 276136, 374756, 552272, 655823, 749512, 1104544, 1311646, 1499024, 2623292, 2998048, 5246584, 10493168, 20986336]

約数ペア:

[(1, 20986336), (2, 10493168), (4, 5246584), (7, 2998048), (8, 2623292), (14, 1499024), (16, 1311646), (19, 1104544), (28, 749512), (32, 655823), (38, 552272), (56, 374756), (76, 276136), (112, 187378), (133, 157792), (152, 138068), (224, 93689), (266, 78896), (304, 69034), (532, 39448), (608, 34517), (1064, 19724), (2128, 9862), (4256, 4931)]