21276976

素因数分解:

$2^4\times 7^3\times {\mathrm{3877}}^1$

素因数の和:3906

約数の個数: 40

約数和(自身を含む): 48087200

約数和(自身を除く): 26810224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3877, 5488, 7754, 15508, 27139, 31016, 54278, 62032, 108556, 189973, 217112, 379946, 434224, 759892, 1329811, 1519784, 2659622, 3039568, 5319244, 10638488, 21276976]

約数ペア:

[(1, 21276976), (2, 10638488), (4, 5319244), (7, 3039568), (8, 2659622), (14, 1519784), (16, 1329811), (28, 759892), (49, 434224), (56, 379946), (98, 217112), (112, 189973), (196, 108556), (343, 62032), (392, 54278), (686, 31016), (784, 27139), (1372, 15508), (2744, 7754), (3877, 5488)]