261612729

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{11503}}^1$

素因数の和:11554

約数の個数: 36

約数和(自身を含む): 455834496

約数和(自身を除く): 194221767

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1197, 2527, 3249, 7581, 11503, 22743, 34509, 80521, 103527, 218557, 241563, 655671, 724689, 1529899, 1967013, 4152583, 4589697, 12457749, 13769091, 29068081, 37373247, 87204243, 261612729]

約数ペア:

[(1, 261612729), (3, 87204243), (7, 37373247), (9, 29068081), (19, 13769091), (21, 12457749), (57, 4589697), (63, 4152583), (133, 1967013), (171, 1529899), (361, 724689), (399, 655671), (1083, 241563), (1197, 218557), (2527, 103527), (3249, 80521), (7581, 34509), (11503, 22743)]