280749021

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{4259}}^1$

素因数の和:4385

約数の個数: 32

約数和(自身を含む): 443857920

約数和(自身を除く): 163108899

約数列:

[1, 3, 7, 21, 43, 73, 129, 219, 301, 511, 903, 1533, 3139, 4259, 9417, 12777, 21973, 29813, 65919, 89439, 183137, 310907, 549411, 932721, 1281959, 2176349, 3845877, 6529047, 13369001, 40107003, 93583007, 280749021]

約数ペア:

[(1, 280749021), (3, 93583007), (7, 40107003), (21, 13369001), (43, 6529047), (73, 3845877), (129, 2176349), (219, 1281959), (301, 932721), (511, 549411), (903, 310907), (1533, 183137), (3139, 89439), (4259, 65919), (9417, 29813), (12777, 21973)]