202121315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 271296000

約数和(自身を除く): 69174685

約数列:

[1, 5, 11, 55, 59, 199, 295, 313, 649, 995, 1565, 2189, 3245, 3443, 10945, 11741, 17215, 18467, 58705, 62287, 92335, 129151, 203137, 311435, 645755, 685157, 1015685, 3425785, 3674933, 18374665, 40424263, 202121315]

約数ペア:

[(1, 202121315), (5, 40424263), (11, 18374665), (55, 3674933), (59, 3425785), (199, 1015685), (295, 685157), (313, 645755), (649, 311435), (995, 203137), (1565, 129151), (2189, 92335), (3245, 62287), (3443, 58705), (10945, 18467), (11741, 17215)]