21512337

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4049}}^1$

素因数の和:4093

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 15812463

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 4049, 5313, 12147, 28343, 44539, 85029, 93127, 133617, 279381, 311773, 651889, 935319, 1024397, 1955667, 3073191, 7170779, 21512337]

約数ペア:

[(1, 21512337), (3, 7170779), (7, 3073191), (11, 1955667), (21, 1024397), (23, 935319), (33, 651889), (69, 311773), (77, 279381), (161, 133617), (231, 93127), (253, 85029), (483, 44539), (759, 28343), (1771, 12147), (4049, 5313)]