1245978321

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{102121}}^1$

素因数の和:102221

約数の個数: 24

約数和(自身を含む): 1955840544

約数和(自身を除く): 709862223

約数列:

[1, 3, 7, 21, 49, 83, 147, 249, 581, 1743, 4067, 12201, 102121, 306363, 714847, 2144541, 5003929, 8476043, 15011787, 25428129, 59332301, 177996903, 415326107, 1245978321]

約数ペア:

[(1, 1245978321), (3, 415326107), (7, 177996903), (21, 59332301), (49, 25428129), (83, 15011787), (147, 8476043), (249, 5003929), (581, 2144541), (1743, 714847), (4067, 306363), (12201, 102121)]