21561456

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{64171}}^1$

素因数の和:64189

約数の個数: 40

約数和(自身を含む): 63658624

約数和(自身を除く): 42097168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 64171, 128342, 192513, 256684, 385026, 449197, 513368, 770052, 898394, 1026736, 1347591, 1540104, 1796788, 2695182, 3080208, 3593576, 5390364, 7187152, 10780728, 21561456]

約数ペア:

[(1, 21561456), (2, 10780728), (3, 7187152), (4, 5390364), (6, 3593576), (7, 3080208), (8, 2695182), (12, 1796788), (14, 1540104), (16, 1347591), (21, 1026736), (24, 898394), (28, 770052), (42, 513368), (48, 449197), (56, 385026), (84, 256684), (112, 192513), (168, 128342), (336, 64171)]