21819975

素因数分解:

$3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{2719}}^1$

素因数の和:2839

約数の個数: 24

約数和(自身を含む): 36426240

約数和(自身を除く): 14606265

約数列:

[1, 3, 5, 15, 25, 75, 107, 321, 535, 1605, 2675, 2719, 8025, 8157, 13595, 40785, 67975, 203925, 290933, 872799, 1454665, 4363995, 7273325, 21819975]

約数ペア:

[(1, 21819975), (3, 7273325), (5, 4363995), (15, 1454665), (25, 872799), (75, 290933), (107, 203925), (321, 67975), (535, 40785), (1605, 13595), (2675, 8157), (2719, 8025)]