209718981

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{13619}}^1$

素因数の和:13713

約数の個数: 24

約数和(自身を含む): 318708000

約数和(自身を除く): 108989019

約数列:

[1, 3, 9, 29, 59, 87, 177, 261, 531, 1711, 5133, 13619, 15399, 40857, 122571, 394951, 803521, 1184853, 2410563, 3554559, 7231689, 23302109, 69906327, 209718981]

約数ペア:

[(1, 209718981), (3, 69906327), (9, 23302109), (29, 7231689), (59, 3554559), (87, 2410563), (177, 1184853), (261, 803521), (531, 394951), (1711, 122571), (5133, 40857), (13619, 15399)]