21034377

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1223}}^1$

素因数の和:1259

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 18035703

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 441, 637, 819, 1223, 1323, 1911, 2457, 3669, 5733, 8561, 11007, 15899, 17199, 25683, 33021, 47697, 59927, 77049, 111293, 143091, 179781, 231147, 333879, 429273, 539343, 779051, 1001637, 1618029, 2337153, 3004911, 7011459, 21034377]

約数ペア:

[(1, 21034377), (3, 7011459), (7, 3004911), (9, 2337153), (13, 1618029), (21, 1001637), (27, 779051), (39, 539343), (49, 429273), (63, 333879), (91, 231147), (117, 179781), (147, 143091), (189, 111293), (273, 77049), (351, 59927), (441, 47697), (637, 33021), (819, 25683), (1223, 17199), (1323, 15899), (1911, 11007), (2457, 8561), (3669, 5733)]