20605998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{490619}}^1$

素因数の和:490631

約数の個数: 16

約数和(自身を含む): 47099520

約数和(自身を除く): 26493522

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 490619, 981238, 1471857, 2943714, 3434333, 6868666, 10302999, 20605998]

約数ペア:

[(1, 20605998), (2, 10302999), (3, 6868666), (6, 3434333), (7, 2943714), (14, 1471857), (21, 981238), (42, 490619)]