20988912

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{62467}}^1$

素因数の和:62485

約数の個数: 40

約数和(自身を含む): 61968256

約数和(自身を除く): 40979344

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 62467, 124934, 187401, 249868, 374802, 437269, 499736, 749604, 874538, 999472, 1311807, 1499208, 1749076, 2623614, 2998416, 3498152, 5247228, 6996304, 10494456, 20988912]

約数ペア:

[(1, 20988912), (2, 10494456), (3, 6996304), (4, 5247228), (6, 3498152), (7, 2998416), (8, 2623614), (12, 1749076), (14, 1499208), (16, 1311807), (21, 999472), (24, 874538), (28, 749604), (42, 499736), (48, 437269), (56, 374802), (84, 249868), (112, 187401), (168, 124934), (336, 62467)]