18968912

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{22369}}^1$

素因数の和:22430

約数の個数: 20

約数和(自身を含む): 37447380

約数和(自身を除く): 18478468

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 22369, 44738, 89476, 178952, 357904, 1185557, 2371114, 4742228, 9484456, 18968912]

約数ペア:

[(1, 18968912), (2, 9484456), (4, 4742228), (8, 2371114), (16, 1185557), (53, 357904), (106, 178952), (212, 89476), (424, 44738), (848, 22369)]