20284551

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13999}}^1$

素因数の和:14035

約数の個数: 24

約数和(自身を含む): 34944000

約数和(自身を除く): 14659449

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 13999, 41997, 97993, 125991, 293979, 321977, 881937, 965931, 2253839, 2897793, 6761517, 20284551]

約数ペア:

[(1, 20284551), (3, 6761517), (7, 2897793), (9, 2253839), (21, 965931), (23, 881937), (63, 321977), (69, 293979), (161, 125991), (207, 97993), (483, 41997), (1449, 13999)]