21000539943

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{1871}}^1\times {\mathrm{73361}}^1$

素因数の和:75255

約数の個数: 24

約数和(自身を含む): 32136077376

約数和(自身を除く): 11135537433

約数列:

[1, 3, 9, 17, 51, 153, 1871, 5613, 16839, 31807, 73361, 95421, 220083, 286263, 660249, 1247137, 3741411, 11224233, 137258431, 411775293, 1235325879, 2333393327, 7000179981, 21000539943]

約数ペア:

[(1, 21000539943), (3, 7000179981), (9, 2333393327), (17, 1235325879), (51, 411775293), (153, 137258431), (1871, 11224233), (5613, 3741411), (16839, 1247137), (31807, 660249), (73361, 286263), (95421, 220083)]