21000228256

素因数分解:

$2^5\times 7^1\times {\mathrm{127}}^1\times {\mathrm{738197}}^1$

素因数の和:738341

約数の個数: 48

約数和(自身を含む): 47622629376

約数和(自身を除く): 26622401120

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 127, 224, 254, 508, 889, 1016, 1778, 2032, 3556, 4064, 7112, 14224, 28448, 738197, 1476394, 2952788, 5167379, 5905576, 10334758, 11811152, 20669516, 23622304, 41339032, 82678064, 93751019, 165356128, 187502038, 375004076, 656257133, 750008152, 1312514266, 1500016304, 2625028532, 3000032608, 5250057064, 10500114128, 21000228256]

約数ペア:

[(1, 21000228256), (2, 10500114128), (4, 5250057064), (7, 3000032608), (8, 2625028532), (14, 1500016304), (16, 1312514266), (28, 750008152), (32, 656257133), (56, 375004076), (112, 187502038), (127, 165356128), (224, 93751019), (254, 82678064), (508, 41339032), (889, 23622304), (1016, 20669516), (1778, 11811152), (2032, 10334758), (3556, 5905576), (4064, 5167379), (7112, 2952788), (14224, 1476394), (28448, 738197)]