18658276

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3943}}^1$

素因数の和:3980

約数の個数: 36

約数和(自身を含む): 40418112

約数和(自身を除く): 21759836

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 3943, 4732, 7886, 15772, 27601, 51259, 55202, 102518, 110404, 205036, 358813, 666367, 717626, 1332734, 1435252, 2665468, 4664569, 9329138, 18658276]

約数ペア:

[(1, 18658276), (2, 9329138), (4, 4664569), (7, 2665468), (13, 1435252), (14, 1332734), (26, 717626), (28, 666367), (52, 358813), (91, 205036), (169, 110404), (182, 102518), (338, 55202), (364, 51259), (676, 27601), (1183, 15772), (2366, 7886), (3943, 4732)]