21203853

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{2371}}^1$

素因数の和:2656

約数の個数: 16

約数和(自身を含む): 30968832

約数和(自身を除く): 9764979

約数列:

[1, 3, 11, 33, 271, 813, 2371, 2981, 7113, 8943, 26081, 78243, 642541, 1927623, 7067951, 21203853]

約数ペア:

[(1, 21203853), (3, 7067951), (11, 1927623), (33, 642541), (271, 78243), (813, 26081), (2371, 8943), (2981, 7113)]