217897456

素因数分解:

$2^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{15319}}^1$

素因数の和:15461

約数の個数: 40

約数和(自身を含む): 486318080

約数和(自身を除く): 268420624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 127, 254, 508, 889, 1016, 1778, 2032, 3556, 7112, 14224, 15319, 30638, 61276, 107233, 122552, 214466, 245104, 428932, 857864, 1715728, 1945513, 3891026, 7782052, 13618591, 15564104, 27237182, 31128208, 54474364, 108948728, 217897456]

約数ペア:

[(1, 217897456), (2, 108948728), (4, 54474364), (7, 31128208), (8, 27237182), (14, 15564104), (16, 13618591), (28, 7782052), (56, 3891026), (112, 1945513), (127, 1715728), (254, 857864), (508, 428932), (889, 245104), (1016, 214466), (1778, 122552), (2032, 107233), (3556, 61276), (7112, 30638), (14224, 15319)]