21574521

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 32535360

約数和(自身を除く): 10960839

約数列:

[1, 3, 9, 29, 87, 131, 261, 393, 631, 1179, 1893, 3799, 5679, 11397, 18299, 34191, 54897, 82661, 164691, 247983, 743949, 2397169, 7191507, 21574521]

約数ペア:

[(1, 21574521), (3, 7191507), (9, 2397169), (29, 743949), (87, 247983), (131, 164691), (261, 82661), (393, 54897), (631, 34191), (1179, 18299), (1893, 11397), (3799, 5679)]