21178740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32089}}^1$

素因数の和:32112

約数の個数: 48

約数和(自身を含む): 64693440

約数和(自身を除く): 43514700

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32089, 64178, 96267, 128356, 160445, 192534, 320890, 352979, 385068, 481335, 641780, 705958, 962670, 1058937, 1411916, 1764895, 1925340, 2117874, 3529790, 4235748, 5294685, 7059580, 10589370, 21178740]

約数ペア:

[(1, 21178740), (2, 10589370), (3, 7059580), (4, 5294685), (5, 4235748), (6, 3529790), (10, 2117874), (11, 1925340), (12, 1764895), (15, 1411916), (20, 1058937), (22, 962670), (30, 705958), (33, 641780), (44, 481335), (55, 385068), (60, 352979), (66, 320890), (110, 192534), (132, 160445), (165, 128356), (220, 96267), (330, 64178), (660, 32089)]