28547757

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{331}}^1$

素因数の和:418

約数の個数: 36

約数和(自身を含む): 48580896

約数和(自身を除く): 20033139

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 331, 333, 777, 993, 1369, 2317, 2331, 2979, 4107, 6951, 9583, 12247, 12321, 20853, 28749, 36741, 85729, 86247, 110223, 257187, 453139, 771561, 1359417, 3171973, 4078251, 9515919, 28547757]

約数ペア:

[(1, 28547757), (3, 9515919), (7, 4078251), (9, 3171973), (21, 1359417), (37, 771561), (63, 453139), (111, 257187), (259, 110223), (331, 86247), (333, 85729), (777, 36741), (993, 28749), (1369, 20853), (2317, 12321), (2331, 12247), (2979, 9583), (4107, 6951)]