17998323

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 28394496

約数和(自身を除く): 10396173

約数列:

[1, 3, 7, 21, 53, 103, 157, 159, 309, 371, 471, 721, 1099, 1113, 2163, 3297, 5459, 8321, 16171, 16377, 24963, 38213, 48513, 58247, 113197, 114639, 174741, 339591, 857063, 2571189, 5999441, 17998323]

約数ペア:

[(1, 17998323), (3, 5999441), (7, 2571189), (21, 857063), (53, 339591), (103, 174741), (157, 114639), (159, 113197), (309, 58247), (371, 48513), (471, 38213), (721, 24963), (1099, 16377), (1113, 16171), (2163, 8321), (3297, 5459)]