199917621

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{3467}}^1$

素因数の和:3665

約数の個数: 24

約数和(自身を含む): 297554400

約数和(自身を除く): 97636779

約数列:

[1, 3, 9, 43, 129, 149, 387, 447, 1341, 3467, 6407, 10401, 19221, 31203, 57663, 149081, 447243, 516583, 1341729, 1549749, 4649247, 22213069, 66639207, 199917621]

約数ペア:

[(1, 199917621), (3, 66639207), (9, 22213069), (43, 4649247), (129, 1549749), (149, 1341729), (387, 516583), (447, 447243), (1341, 149081), (3467, 57663), (6407, 31203), (10401, 19221)]