21651672

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128879}}^1$

素因数の和:128895

約数の個数: 32

約数和(自身を含む): 61862400

約数和(自身を除く): 40210728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128879, 257758, 386637, 515516, 773274, 902153, 1031032, 1546548, 1804306, 2706459, 3093096, 3608612, 5412918, 7217224, 10825836, 21651672]

約数ペア:

[(1, 21651672), (2, 10825836), (3, 7217224), (4, 5412918), (6, 3608612), (7, 3093096), (8, 2706459), (12, 1804306), (14, 1546548), (21, 1031032), (24, 902153), (28, 773274), (42, 515516), (56, 386637), (84, 257758), (168, 128879)]