21296325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16703}}^1$

素因数の和:16733

約数の個数: 24

約数和(自身を含む): 37283328

約数和(自身を除く): 15987003

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16703, 50109, 83515, 250545, 283951, 417575, 851853, 1252725, 1419755, 4259265, 7098775, 21296325]

約数ペア:

[(1, 21296325), (3, 7098775), (5, 4259265), (15, 1419755), (17, 1252725), (25, 851853), (51, 417575), (75, 283951), (85, 250545), (255, 83515), (425, 50109), (1275, 16703)]