21357297

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:950

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 13237263

約数列:

[1, 3, 9, 13, 27, 39, 71, 117, 213, 351, 639, 857, 923, 1917, 2571, 2769, 7713, 8307, 11141, 23139, 24921, 33423, 60847, 100269, 182541, 300807, 547623, 791011, 1642869, 2373033, 7119099, 21357297]

約数ペア:

[(1, 21357297), (3, 7119099), (9, 2373033), (13, 1642869), (27, 791011), (39, 547623), (71, 300807), (117, 182541), (213, 100269), (351, 60847), (639, 33423), (857, 24921), (923, 23139), (1917, 11141), (2571, 8307), (2769, 7713)]