20986644

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{577}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 56190848

約数和(自身を除く): 35204204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 433, 577, 866, 1154, 1299, 1731, 1732, 2308, 2598, 3031, 3462, 4039, 5196, 6062, 6924, 8078, 9093, 12117, 12124, 16156, 18186, 24234, 36372, 48468, 249841, 499682, 749523, 999364, 1499046, 1748887, 2998092, 3497774, 5246661, 6995548, 10493322, 20986644]

約数ペア:

[(1, 20986644), (2, 10493322), (3, 6995548), (4, 5246661), (6, 3497774), (7, 2998092), (12, 1748887), (14, 1499046), (21, 999364), (28, 749523), (42, 499682), (84, 249841), (433, 48468), (577, 36372), (866, 24234), (1154, 18186), (1299, 16156), (1731, 12124), (1732, 12117), (2308, 9093), (2598, 8078), (3031, 6924), (3462, 6062), (4039, 5196)]