212217795

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{1187}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 383628960

約数和(自身を除く): 171411165

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 137, 145, 261, 411, 435, 685, 1187, 1233, 1305, 2055, 3561, 3973, 5935, 6165, 10683, 11919, 17805, 19865, 34423, 35757, 53415, 59595, 103269, 162619, 172115, 178785, 309807, 487857, 516345, 813095, 1463571, 1549035, 2439285, 4715951, 7317855, 14147853, 23579755, 42443559, 70739265, 212217795]

約数ペア:

[(1, 212217795), (3, 70739265), (5, 42443559), (9, 23579755), (15, 14147853), (29, 7317855), (45, 4715951), (87, 2439285), (137, 1549035), (145, 1463571), (261, 813095), (411, 516345), (435, 487857), (685, 309807), (1187, 178785), (1233, 172115), (1305, 162619), (2055, 103269), (3561, 59595), (3973, 53415), (5935, 35757), (6165, 34423), (10683, 19865), (11919, 17805)]