638052009

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{498089}}^1$

素因数の和:498160

約数の個数: 16

約数和(自身を含む): 988210560

約数和(自身を除く): 350158551

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 498089, 1494267, 3486623, 10459869, 30383429, 91150287, 212684003, 638052009]

約数ペア:

[(1, 638052009), (3, 212684003), (7, 91150287), (21, 30383429), (61, 10459869), (183, 3486623), (427, 1494267), (1281, 498089)]